• The Palisades and Eaton fires have razed thousands of homes and burned tens of thousands of acres.
• Some buildings have survived, though, like the Getty Villa art museum in Pacific Palisades.
• The Villa is not your average home, but homeowners can learn from what Getty staff have been doing all year.

As the Palisades and Eaton fires burned through thousands of acres on Tuesday, razing nearly 2,000 homes, the iconic Getty Villa remained standing with minor damage. Meanwhile, homes and trees around it went up in flames.

"We deeply appreciate the tireless work and dedication of the Los Angeles Fire Department, Los Angeles County Fire Department, and other agencies," the museum said in a statement Wednesday morning.

The Getty Villa is part of the J. Paul Getty Trust, which includes the largest endowment of any museum in the world, estimated at more than $8 billion in 2023. It houses the trust's collection of Ancient Greek and Roman art.

Fire departments used "state-of-the-art air handling systems" to help protect the building, Katherine E. Fleming, the president and CEO of the Getty Trust, told USA Today.

Moreover, builders designed the galleries with double-walled construction, which also helped protect the precious art inside.

However, it wasn't just expensive architecture and state-of-the-art firefighting that helped. Getty staff have been consistently clearing brush from the surrounding area all year as part of its fire-mitigation efforts, the museum said.

That's a crucial lesson for homeowners in fire-risk areas.

Yard work to save your home

The Palisades fire has become the most destructive ever to hit Los Angeles, CNN reported, citing CalFire data.

The fire has been fueled by an explosion of grasses and brush that grew abundant over the past two winters, which were rainier than usual. But with drought conditions over the past few months, that brush dried out, becoming kindling for the fast-moving blazes.

To mitigate the risk of fire, cities, fire departments, and community members can clear dried grasslands around residential areas.

Individual homeowners can also protect their properties by clearing a 5-foot perimeter around their houses and removing flammable materials like ornamental plants, bark mulch, or deck furniture.

"This is an urban fire. We're burning urban fuels," said Pat Durland, a wildfire-mitigation specialist and instructor for the National Fire Protection Association with 30 years of federal wildfire management experience.

Keeping gutters and roofs clear can also prevent spot ignitions that can send entire structures up in flames.

"People believe that they're helpless," Durland told Business Insider in 2023. But that's not the case, he said. "Nine out of 10 times, this boils down to two words: yard work."

Homeowners can also install noncombustible, 1/8-inch mesh screening on any vents to a crawl space or attic to prevent embers from entering the home that way.

"You are where the rubber meets the road. The things you do on your house and around your house are going to make the difference," Durland said.

• NASA scrapped its $11 billion plan to return samples from Mars to Earth by 2040.
• It now has not one but two new options to choose from — both are faster and cheaper.
• The samples could return as soon as 2035 and may contain the first-ever signs of ancient alien life.

The Perseverance rover is building up a stash of rocks on Mars that could contain the first-ever signs of alien life, but NASA is scrambling to figure out how it will bring them back to Earth for analysis.

NASA had a plan but it got "out of control," in the words of the agency's administrator, Bill Nelson. After a series of delays, the cost ballooned to $11 billion and the samples wouldn't be landing on Earth until 2040.

So Nelson scrapped that plan in April and called for new proposals from outside and within NASA.

After months of assessment, on Tuesday, Nelson announced that "the wizards at NASA" had come up with a new plan, which could bring the Mars rocks to Earth as early as 2035 for as cheap as $5.8 billion.

"We want to have the quickest, cheapest way to get these 30 samples back," Nelson said during a NASA presser on Tuesday.

For that to work, he said the incoming Trump administration will need to get on board.

"This is going to be a function of the new administration in order to fund this," Nelson said. "And it's an appropriation that has to start right now, fiscal year '25."

The search for alien life on Mars

NASA is not looking for active alien life but rather fossilized hints of long-gone microbial life.

The $2.4 billion Perseverance rover has spent the last four years exploring Jezero Crater, which was a lake billions of years ago. If microbes ever lived on Mars, this is the ideal spot to search for evidence of them.

In fact, in July, Perseverance stumbled on a rock in Jezero Crater that contained some of the strongest potential evidence of ancient alien life to date.

One of the rock's outstanding features was tiny white "leopard spots" that could suggest the presence of chemical reactions similar to those associated with microbial life on Earth.

It's still uncertain whether this is truly a sign of alien microbes. There could be non-biological explanations for the spots. To check, NASA needs to get that rock here to Earth for study in laboratories.

NASA's new plan

Bringing Perseverance's Mars samples to Earth will be complicated.

NASA must launch a mission that collects the samples from the Martian surface and launches them into Mars' orbit, where they must meet up with a European spacecraft designed to grab them and carry them back to Earth.

To make things simpler and reduce costs, NASA focused on how it would drop that mission to the Martian surface.

In order to maximize the chance of the sample return mission moving forward, NASA chose not one but two options to pursue.

The first option would involve using existing technology that's previously landed on Mars. That's a sky crane, similar to the ones that helped lower NASA's Curiosity and Perseverance rovers on Mars' surface.

The second option involves working with existing commercial partners, like SpaceX and Blue Origin. In that scenario, NASA would use new commercial technology, untested on Mars, like a heavy lander, Nelson said.

Both paths would cost around $6 or $7 billion and deliver the samples to Earth before 2040, NASA determined.

Nelson said he expects NASA to choose one of those paths forward in 2026 since the engineering work required to fully understand each option will take about a year.

He added that NASA will need $300 million to do that work in fiscal year 2025. Trump would have to include that expense in his budget proposal, and Congress would have to approve it.

"And if they want to get this thing back on a direct return earlier, they're going to have to put more money into it, even more than $300 million in fiscal year 25. And that would be the case every year going forward," Nelson said.

As part of the transition to the new Trump administration, Nelson will likely be handing the agency over to Trump-nominee Jared Isaacman, a billionaire and two-time SpaceX astronaut.

After Trump nominated him for NASA Administrator, Isaacman wrote in a post on X that "Americans will walk on the Moon and Mars."

His position on the Mars Sample Return mission is unclear. Nelson said he had not spoken with Isaacman about it.

• The Palisades and Eaton fires are devastating parts of Los Angeles, destroying entire communities.
• Photos offer a glimpse at the scale of destruction that occurred in just a day and a half.
• The situation is still ongoing and dangerous, with evacuation orders in many areas.

The Palisades and Eaton fires are ripping through parts of Los Angeles and causing mass destruction.

Firefighters are still struggling to contain the blazes, which grew rapidly and have continued for more than 24 hours.

The fires have destroyed at least 1,000 homes. Five people are reported dead. These counts are preliminary, as the situation is still dynamic.

It's difficult to grasp the scale of these fires, but emerging photos paint a grim picture.

The massive Palisades and Eaton fires ripping through Los Angeles show how quickly brush fires can escalate under dry, windy conditions.

More than 70,000 people were under evacuation orders on Wednesday afternoon. Officials have warned that people in many other surrounding regions should prepare to leave their homes at a moment's notice.

Pat Durland, a wildfire-mitigation specialist and instructor for the National Fire Protection Association with 30 years of federal wildfire management experience, told Business Insider that if he lived in the area, he would leave before evacuation orders even hit his home.

"I would have left and gone to the beach or gotten a hotel," he said.

A giant smoke plume was rising over Santa Monica within an hour of the Palisades Fire igniting Tuesday morning.

UC San Diego's ALERTCalifornia camera network captured it from the other side of Santa Monica. At that time the fire covered about 200 acres.

So many people had to evacuate that Palisades Drive was gridlocked.

Many people abandoned their cars and fled on foot.

Since then, the Palisades Fire has burned through more than 15,800 acres. This was the area with evacuation zones early Wednesday afternoon.

That's where the acreage stood at 2:30 p.m. PT on Wednesday. Throughout the morning it was increasing hour by hour.

The most up-to-date evacuation orders and warnings are available through CalFire.

Photos are emerging from areas where the Palisades Fire has burned its way through.

The Eaton Fire in nearby Pasadena also rapidly ballooned overnight and Wednesday morning.

The Eaton Fire covered 10,600 acres as of 1 p.m. PT on Wednesday.

Images from that area show a similar situation to Pacific Palisades: frantic evacuations and destroyed homes.

The smoke from the fires filled the Los Angeles area, darkening the skies and causing unhealthy air quality.

A powerful windstorm spread the flames quickly, sending embers flying and igniting new spots, even jumping across roads.

Hurricane-force winds peaked overnight and Wednesday morning, and firefighters were unable to contain the blazes.

"Despite the efforts we put in with well-trained firefighters and equipment and aircraft, the wind and the weather still are ruling these situations," Durland said of major, fast-moving fires like these.

Another ALERTCalifornia camera captured the rising smoke from a ridge on the other side of the fire about an hour after it started.

This was the view from the same trailhead Tuesday night. This camera has since gone offline.

Bone-dry vegetation provided abundant fire fuel due to a phenomenon called weather whiplash.

The last two winters in Southern California have been quite wet, even causing flooding. That led to an explosion of grasses and shrubs, nearly twice as much as a normal season, according to the UCLA climate scientist Daniel Swain.

However, this winter has been different. Months without precipitation have dried out all that vegetation, blanketing the LA hillsides with fire fuel.

Grasses and shrubs help spread the fire, but it's "human fuels" that ignite homes, Durland said.

"It's bark mulch, it's ornamental grasses, it's structures that are readily flammable," Durland said.

"This is an urban fire. We're burning urban fuels," he added.

That means that cities and homeowners can do something about it. More fire-resistant landscaping and construction can help protect homes from future firestorms like this.

There are always houses that survive wildfires, Durland said, and everyone can learn from that.

It helps to build homes with ample space between them and maintain a perimeter of at least five feet that's totally free of dry or flammable vegetation or mulch.

Homeowners can also keep their roofs and gutters clear and remove anything flammable from underneath porches and decks.

The Palisades were full of multi-million-dollar homes, which means this could be the costliest fire in US history, Swain said.

According to a preliminary estimate from JP Morgan, insured losses alone could amount to $10 billion.

The Eaton fire, burning in Pasadena and Altadena, was at 0% containment as of Wednesday afternoon.

• Firestorms in Los Angeles have burned nearly 27,000 acres, destroying homes and killing five people.
• One of the biggest blazes, the Palisades Fire, could be the costliest in US history.
• The fires have spread so fast in part because of a windstorm and flood-drought whiplash.

All was well in Los Angeles at around 10 a.m. on Tuesday.

Less than 24 hours later, 2,925 acres of the Pacific Palisades were ablaze in what is being called the worst wildfire in Southern California since 2011. It has grown by orders of magnitude since.

Several more blazes have ignited in the area, with one, the Eaton Fire, engulfing another 10,600 acres.

Firefighters had not contained the fires as of early Thursday morning, the Los Angeles Fire Department said. On Wednesday, Gov. Gavin Newsom told CNN that five people were dead, and "likely more."

More than 1,000 structures have burned and the fires could get even worse.

California is no stranger to fires, but this situation is different and especially dangerous for a few reasons.

An 'urban firestorm' that could be the costliest in history

Few brush fires in California history have intruded into such vast areas of dense, urban housing.

The UCLA climate scientist Daniel Swain called it an "urban firestorm" as he assessed live images of the developing Eaton Fire on Tuesday morning.

Perhaps the best historical comparison is the 1991 Tunnel Fire, which raged through more than 1,500 acres of Oakland, but it was smaller than either of the two giant blazes in Los Angeles. It killed 25 people and injured 150, and ranks as the third-deadliest and third-most-destructive fire in California history.

The true toll of this week's fires won't be clear until later.

Swain said that he and several colleagues have estimated that the Palisades Fire could be the costliest on record in the US because of the number of structures burning and the fact that those homes are some of the most expensive in the world.

"We are looking at what is, I think, likely to become the costliest wildfire disaster in California, if not national history, along with a number of other superlatives," Swain said.

A historic windstorm spread the fire fast

A powerful windstorm buffeted the flames throughout Tuesday and into Wednesday morning, with gusts of wind reaching up to 90 miles an hour, according to the National Weather Service.

During a 2 ½ hour period overnight, the Palisades Fire's size more than doubled, per the fire service's reports.

The winds were so powerful on Tuesday evening that water- and retardant-dropping aircraft could not fly.

It's a phenomenon that scientists have warned about: a deadly combination of high winds and dry, open land — such as the brushland now being swept by flames in Los Angeles — amounting to fires that move faster than emergency responders can keep up with.

"It's certainly unusual how fast it's grown," Douglas Kelley, a researcher at the UK's Centre for Ecology and Hydrology, told Business Insider. "It's definitely a lot faster than I guess a lot of people were expecting in the area at the time."

A study published in Science in October found that while only about 3% of US fires over a nearly two-decade period could be considered "fast fires," they caused disproportionate damage.

"The most destructive and deadly wildfires in US history were also fast," wrote the study's authors, led by University of Colorado Boulder's Jennifer Balch.

Between 2001 and 2020, fast fires accounted for 78% of fire-destroyed buildings and a full 61% of suppression costs — or $18.9 billion, the scientists wrote. And they are getting more frequent, the study said.

The windstorm was bad luck. But the other primary factor in the fires' rapid explosions — the fuel — is strongly linked to the climate crisis.

Weather whiplash made abundant fire fuel

Southern California has experienced heavy rainfall and flooding the past two winters — which is a huge part of the problem.

Abundant rainfall spurred an explosion of grasses and brush, the primary fire fuel in Southern California. Then, with very little rainfall in the past few months, all that vegetation was flash-dried.

Kelley said those dry conditions made the Palisades especially susceptible to a fast-spreading fire.

This is part of a growing phenomenon that Swain calls "hydroclimate whiplash," or weather whiplash. As global temperatures rise, many parts of the world, especially California, are seeing more violent swings between extreme wet and extreme dry conditions.

The same confluence of weather whiplash and extreme winds was behind the Camp Fire, Swain said. That November 2018 blaze in Paradise, California, was the deadliest and most destructive in the state's history, destroying 18,804 structures and killing 85 people.

• A 65-year-old patient has died of bird flu, Louisiana officials reported on Monday.
• The patient had underlying conditions and was likely infected by exposure to birds.
• This is the first death linked to the current outbreak of H5N1, avian influenza.

Bird flu has claimed its first human death in the US.

A Louisiana patient died from a severe case of the H5N1 avian influenza, state health officials reported on Monday.

The patient, who was over 65 and had underlying conditions, is the only human case of H5N1 in Louisiana.

There is still no sign that the H5N1 virus can spread between people. The Louisiana patient contracted the virus after exposure to wild birds and a non-commercial backyard flock, officials reported.

The bird flu's proliferation through bird and animal populations worldwide has led to many human spillover cases over the years. There have been 939 cases of human H5N1 infections worldwide as of November 2024, according to the World Health Organization. Of those, 464 were fatal.

"I think it's pretty clear that we will continue to see severe disease," Richard Webby, a virologist at St. Jude and director of the WHO animal and bird flu center, told Business Insider. "I guess the real question is are we going to see more? I don't know the answer to that one."

A new variant of H5N1 with concerning mutations

The Louisiana patient, who was hospitalized in late 2024, carried a new version of bird flu, which is unlike the bird flu that has been spreading in cattle across the US, the CDC reported. A teenager in Canada, who was hospitalized with severe bird flu in November, also carried that new version, which is called the D1.1 genotype.

Public-health experts are concerned that H5N1 could develop mutations that allow it to adapt better to infecting mammals. That could set the virus on a path to human-to-human transmission.

Webby said samples of the D1.1 genotype virus "did look like they were starting to develop some of those mutations" after infecting the Louisiana and Canada patients.

Fortunately, the mutated virus did not appear to pass from those two patients to other people.

"To be honest, the last month, six weeks, have made me a little more uneasy about the situation," Webby said.

The Louisiana Department of Health said in its report that the public health risk for the general public remains low, but "people who work with birds, poultry or cows, or have recreational exposure to them, are at higher risk."

Still, Webby said the Louisiana case shows that "the risk of catching this virus is not just for those that are in a milking parlor in California," who are some of the most at-risk due to the widespread outbreak in the state's cattle.

Rather, he said, "anywhere where there's birds, there is a risk to individuals who are in contact with those birds."

• Parts of the US are being battered by Winter Storm Blair, with states of emergency declared.
• The frigid conditions are impacting travel, with icy Midwest roads and flights and trains canceled.
• Snow hit Washington, DC, on Monday as the area prepares for the Trump administration transition.

Ice-storm warnings and unpleasantly cold conditions are expected to continue in much of the northern US.

The Arctic outbreak, dubbed Winter Storm Blair by the Weather Channel, has disrupted travel and resulted in at least five deaths.

The storm is bringing heavy snow to areas in the mid-Atlantic region that haven't seen such weather in a decade, the National Weather Service warned.

Heavy snowfall has occurred in places such as Kansas City, Missouri, where local media reported 10 inches of snow on Sunday night, and Louisville, Kentucky, which saw its largest single-day snowfall in about 25 years.

On Tuesday, snow is expected to dwindle in most of the areas blanketed by it as the storm moves south.

Two people have died in a weather-related crash in Wichita, Kansas, a Missouri public works employee was fatally injured during snow removal operations, and a person in Houston, Texas, died due to cold weather, NBC reported on Monday afternoon.

As of 3 a.m. ET Tuesday, about 207,063 utility customers were without power across Kentucky, Indiana, West Virginia, Virginia, Illinois, and Missouri, according to PowerOutage.us, which tracks power outages across the US. That was down from about 254,000 customers on Monday afternoon.

Travel delays and cancellations

More than 2,900 flights were canceled and over 9,300 flights within, into, or out of the US were delayed on Monday, according to FlightAware.

More than half of Monday flights were canceled at Ronald Reagan Washington National Airport, while the nearby Baltimore/Washington International Thurgood Marshall Airport saw 125 flights, or 43% of those scheduled Monday, canceled.

Chicago O'Hare and Dallas-Fort Worth International Airports are leading the country in delays.

Amtrak, the US national rail operator, also announced a series of cancellations in the Northeast and the Midwest on Monday.

The numbers of impacted flights are expected to continue to rise.

Airlines including American, Delta, Southwest, and United have said they're waiving change fees for flights impacted by the storm.

Meanwhile, freezing temperatures led to icy roads and dangerous driving conditions in the Midwest on Sunday. The Missouri State Highway Patrol reported 436 crashes and 1,788 stranded motorists by 3 p.m. on Monday.

Heavy snow and cold to continue

The NWS Weather Prediction Center said Monday that the adverse weather would move toward the mid-Atlantic throughout the day, bringing up to 12 inches of snow and dangerously cold temperatures.

Snow — possibly mixed with sleet and freezing rain — reached about 8 inches in Washington, DC, where preparations are underway for Donald Trump's incoming administration.

Additional cold weather warnings have also been issued in Baltimore, Cincinnati, Louisville, and St. Louis, with officials warning to limit travel in the impacted areas, The Weather Channel reported.

The Baltimore-Washington National Weather Service said on Monday afternoon that heavy snow would continue through 11 p.m., dropping up to 3 more inches before the snow system exits the area.

On Monday night, it predicted light snow to continue into the night with an extra 1 to 2 inches near urban areas and in the mountains, and low temperatures in the single digits in the west to upper teens elsewhere.

In an X post in the early hours of Tuesday, the mayor of Washington, DC, Muriel Bowser, said more than 200 snow plows would work through the night, and that school would be closed Tuesday.

Kansas, Missouri, Kentucky, Virginia, West Virginia, Maryland, and Arkansas have declared states of emergency, with Gov. Phil Murphy of New Jersey declaring a state of emergency for several counties.

In all, about half the US population is expected to experience freezing temperatures over the next week, Axios reported.

• Kenyan officials are investigating who owns a mysterious metallic object that fell from the sky.
• The giant ring fell from space, crash-landing into Mukuku Village in Kenya on Wednesday.
• No one was hurt, but space debris poses a serious threat to life on Earth and in space.

On Wednesday, Mukuku Village in Kenya got an unexpected visitor from space.

At about 3 p.m. local time, a large metallic ring weighing about 1,100 pounds and measuring 8 feet in diameter crash-landed in the village, the Kenya Space Agency said in a statement.

The agency said no one was injured, and that the space debris poses no immediate risk.

Maj. Alois Were, an officer with the Kenya Space Agency, told Citizen TV, a Kenyan news station, that the ring-like object is "possibly from a rocket separation stage."

However, it's unclear whose rocket the ring might belong to. Officials said they had collected pieces from the impact site for further analysis to determine its origins.

Were said that once they determine the owner, the space agency will use the "existing legal mechanisms under international law" to hold the person or organization accountable.

Space debris is usually designed to either burn up in Earth's atmosphere before reaching the ground or land in unpopulated areas, like the ocean. This doesn't always happen, though.

For example, in May 2024, a piece of SpaceX debris as large as a car hood crash-landed on a trail at a mountaintop resort just outside Asheville, North Carolina.

If it had landed on a person hiking the trail that day, it would have certainly killed them, Jonathan McDowell, an astrophysicist at the Harvard and Smithsonian Center for Astrophysics and leading space debris expert, told Business Insider in July.

To date, no one has died from space debris raining from the skies. Perhaps the closest call was in March, when a two-pound piece of debris slightly smaller than a soda can fell from the International Space Station, crashing through a family's roof in Florida. The family is suing NASA over the incident.

Ever since humans started launching objects into space in the late 1950s, there has been a risk that some might fall back to Earth in an unexpected place. As humans launch more objects into space, however, that risk is growing.

Between 2008 and 2017, global space organizations launched an average of 82 orbital rockets a year. That number jumped to an average of about 130 launches a year between 2018 and 2022, according to the US International Trade Commission. In 2024, there were about 250 launches — a new record.

This poses risks on Earth and adds to a long-existing problem in space: space clutter and collisions. There's a lot of trash in space, from dead satellites and astronaut gloves to tiny bits no larger than a grape.

These millions of bits of debris are racing around our planet faster than a bullet. It's gotten so bad that about 1,000 warnings of possible impending collisions are issued daily to satellite operators, physicist Thomas Berger said in a press briefing at December's annual American Geophysical Union meeting.

Berger said a major collision could generate "an unstoppable chain reaction of further collisions, ultimately resulting in a completely filled-up space environment."

If that happens, it could make space unusable.

• Luxury beachfront high-rises on the coast of Miami's barrier islands are sinking, a new study found.
• Subsidence and rising seas are a global problem, affecting up to $109 billion of US coastal property by 2050.
• Satellites could spot buildings that are sinking or tilting for early intervention.

Coastal properties worldwide are sinking, including some of Miami's pricey waterfront high-rises.

In a study published in the journal Earth and Space Science in December, researchers found that 35 buildings along the coasts of Miami's barrier islands have sunk into the ground by 2 to 8 centimeters between 2016 and 2023.

This sinking phenomenon, called subsidence, is happening "almost everywhere that we look," said Manoochehr Shirzaei, a geophysicist at Virginia Tech who was not involved in the Miami-area study.

That sinking can lead to expensive — and sometimes deadly — damage and flooding in some of the most populated places on Earth. It doesn't have to, though.

The new Miami study shows how satellites can help save buildings and infrastructure before the sinking contributes to catastrophic failure.

Coastal cities' sinking problem

Cities all over the world weigh so much and draw so much groundwater from beneath them that they're sinking into the ground. It's been documented on every continent.

Sinking coastal cities are extra vulnerable because the seas are rising to meet them, doubling the flood risk.

"One centimeter of sea level rise and one centimeter of subsidence each have the same effects" on flooding hazards, the lead authors of the new Miami study, Farzaneh Aziz Zanjani and Falk Amelung, told BI in an email.

Many of the most afflicted coastal cities are in eastern and southern Asia, but major hubs in Europe, Africa, and Australia are also sinking rapidly.

In the US, Shirzaei's research group found that huge swaths of the East Coast — including New York and Baltimore — are sinking by at least 2 millimeters each year.

In a follow-up study, Shirzaei's research group found Gulf Coast cities sinking even more.

Expensive flood risks and structural damage

Despite its prevalence, subsidence isn't usually factored into future flooding estimates.

By combining it with sea-level rise projections, Shirzaei's group estimated that up to 518,000 more Americans will be exposed to high tide flooding by 2050 in up to 288,000 more properties, amounting to $109 billion in property value.

It's not just flooding, though. Subsidence can also compromise a building's structural integrity.

"The situation becomes concerning when different parts of the building move at varying rates," Aziz Zanjani and Amelung said.

"This can cause structural damage, such as cracks or distortions, which could compromise the building's safety over time," they added.

Knowing if and how buildings are sinking could help prevent future damage. That's where the Miami researchers' study comes in.

Satellites can spy hot spots before they sink too far

After the 2021 collapse of the Champlain South Condominium Tower in Surfside, Florida, which killed 98 people, Miami researchers began to wonder if the ground beneath that building was part of the problem.

When they assessed satellite data, they didn't find any indication of subsidence before the incident, which surprised them because so much construction was happening in the area.

They'd found that the subsidence of other buildings was associated with nearby construction. The researchers think the difference is sand.

The limestone underground might be interspersed with sandy layers in the barrier islands. Vibrations from construction could cause the sand grains to shift and give way under the buildings' weight.

Though there are likely other factors at play, having such a specific link to the subsidence of specific structures can be helpful. That's the first step in solving a building's sinking problem.

"It would be incredibly helpful if this type of information were more readily available to researchers," Aziz Zanjani and Amelung said.

The Miami researchers are seeking more funding to study Miami's sediments and investigate uneven subsidence, where different parts of a building sink at different rates.

Shirzaei said satellite remote-sensing could be a diagnostic tool to scan specific regions — such as Miami's barrier islands — for buildings tilting on uneven land subsidence. Then, investigators can target at-risk spots and, if necessary, suggest structural reinforcements.

After all, the Miami scientists wrote in their paper, "There are no indications that subsidence will come to a stop."

• Astronauts take hundreds of stunning photos from the International Space Station.
• This year's best snapshots reveal both Earth and space in glorious detail.
• Check out astronauts' views of eclipses, northern lights, storms, and Earth's grandest landscapes.

Every year, the International Space Station produces some of the world's best photography.

Astronauts tend to be technically skilled with a camera, yes. Many of them are engineers, after all.

Their real photography advantage, though, is the glorious view from space as they circle our planet every 90 minutes.

From blue comets and pink northern lights to snowy volcanos and winding rivers, the view 250 miles above Earth does not disappoint.

Here are the best photos of 2024 from the space station.

You simply can't beat the views from the International Space Station.

So astronauts take hundreds of photos each year.

"How would you not want to take pictures and try and share that with the rest of humanity?" NASA astronaut Matt Dominick told ABC News Radio in August.

This year brought a special treat: the bold, bright Comet Tsuchinshan-ATLAS, or Comet A3.

Of course, astronauts also get front-row seats to the northern lights, aka the aurora borealis.

In April, they watched the shadow of the moon creep across the US during the total solar eclipse.

Earth's atmosphere offers other unique spectacles, such as colorful sunsets and sunrises.

This eerie sheen is noctilucent clouds — extremely rare ice-crystal formations much higher in the atmosphere than any other cloud.

Even these gorgeous photos don't do the real views justice, according to Dominick.

"I've spent a fair amount of time trying to capture what I can see with my eye. I've not been able to achieve it yet," he said.

Not all the views are fun or comforting. Astronauts can see wildfires clearly.

Every year they get a bird's-eye view of hurricanes, too.

Stretching hundreds of miles wide, major storms like Hurricanes Helene and Milton seem to swallow the world below.

Astronauts can even see lightning blaring through the clouds.

One thing they can't often see is borders — like in this spot where Libya, Sudan, and Egypt meet in the Sahara desert.

Astronauts have long described a profound shift in perspective when they first see Earth from above. It's called the "Overview Effect."

They talk about overwhelming feelings of awe, unity, and a sense of Earth's fragility.

The actor William Shatner described it after his 2021 spaceflight with Jeff Bezos: "There's the blue down there and the black up there. There is Mother Earth and comfort, and there is — is there death? I don't know."

"It really is difficult for me to imagine people on Earth not getting along together," NASA astronaut Suni Williams told reporters in September. "It just changes your perspective."

Williams and her crewmate, Butch Wilmore, have been stuck on the space station for months.

They were the first people to fly on Boeing's Starliner spaceship for a roughly week-long flight in July.

Starliner returned to Earth without them after engine issues made NASA officials concerned about its safety.

Now, Williams and Wilmore are scheduled to return to Earth aboard SpaceX's Crew Dragon spaceship in March.

They've taken the setback in stride. "This is my happy place. I love being up here in space," Williams said.

The space station's days are numbered, though. It will reach the end of its operational life in 2030.

NASA has asked SpaceX to design a vehicle to push the ISS out of orbit, to a fiery plunge into the Pacific Ocean.

The ISS will have a "big legacy," Dominick said: "Look what humanity can do when they come together and work together."

• Space junk has filled up so much of Earth's orbit that it's endangering satellites and astronauts.
• The company Kayhan Space issues roughly 1,000 space-collision warnings per day.
• Earth-orbit experts fear debris will cause an "unstoppable chain reaction" that cuts off launches.

So much junk is filling Earth's orbit that collision avoidance has become a busy business.

"We're talking about the dead satellites, the rocket bodies, the fairings, the wrenches, the gloves, and things like that that have been left up in orbit," physicist Thomas Berger said in a press briefing at the fall meeting of the American Geophysical Union in Washington DC on December 11.

Along with those recognizable objects, there are millions of bits of debris in orbit traveling faster than a bullet.

All that stuff is building up and increasing the risk of explosive space collisions, which is dangerous for astronauts and satellites.

Earth's orbit is so crowded with junk now that roughly 1,000 warnings about possible impending collisions go out to satellite operators each day, Berger said.

For example, Araz Feyzi, a co-founder of the orbital data company Kayhan Space, told BI in an email that some of its customer satellites get up to 800 alerts per day from the US Space Force.

Siamak Hesar, the company's other co-founder, later wrote in a SpaceNews editorial that the company tracks "more than 60,000 alerts per week for a constellation of around 100 satellites."

Most of those warnings come from one neighborhood of Earth's orbit, around 550 kilometers (340 miles) in altitude, where SpaceX's Starlink satellites live.

"It's getting difficult for satellite operators to determine which of these warnings is important and which they have to pay attention to," said Berger, who is the executive director of the Space Weather Technology, Research and Education Center at the University of Colorado, Boulder.

Because trackers can't perfectly predict objects' positions in space, these collision warnings are triggered when objects are expected to pass each other at a close distance. Only a small fraction of warnings actually end in a collision.

When space objects do collide, they eject high-speed debris in multiple directions, creating a new zone of hazardous junk in orbit.

"It could generate a chain reaction, an unstoppable chain reaction of further collisions, ultimately resulting in a completely filled-up space environment," Berger said.

In the worst-case scenario, orbit could become so crowded that there's no safe space for new rocket launches.

That's a situation experts call Kessler syndrome, and "that we hope to prevent," Berger said.

Close calls and near-misses

While rare, major collisions and explosions have happened a few times.

In 2009, an American satellite and Russian satellite crashed together, ending in nearly 2,000 bits of debris large enough to detect — at least 4 inches wide — with thousands more smaller bits.

In 2021, a Chinese satellite and a Russian rocket chunk collided, creating at least 37 pieces of debris large enough for ground systems to track.

And anti-satellite missile tests by Russia, China, and India have blown up dead spacecraft in orbit, sending thousands of chunks flying.

Each of these events created its own field of hazardous debris which still rockets around the planet today with potentially dire consequences.

For example, several times a year, astronauts on the International Space Station get debris alerts and prepare to evacuate if the station is struck. When this happens, spaceships docked to the station will burn their engines to push it out of the way.

Satellite operators often respond to warnings by moving their satellites out of the way. SpaceX told the FCC in July that its satellites had conducted nearly 50,000 collision-avoidance maneuvers in just the first half of the year, Space.com reported.

Unfortunately, not all satellites are maneuverable.

In March, NASA had to sit on its hands and watch as a long-dead Russian spacecraft careened toward the agency's TIMED satellite, which was designed in the 1990s and doesn't have the ability to move on command.

Luckily, the two spacecraft missed each other by 17 meters (56 feet) — not very far by space standards.

"That would've been a hypervelocity impact creating thousands of pieces of debris," Berger said.

Daniel Baker, who directs the Laboratory for Atmospheric and Space Physics at UC Boulder, urged the US Congress to pass the ORBITS Act. The legislation would require federal agencies like NASA and the FCC to support technologies that can remove junk from orbit.

"I believe that we are watching the tragedy of the commons play out in low-Earth orbit right before our eyes," Baker said in the briefing.

"We have to get serious about this and recognize that unless we do something, we are in imminent danger of making a whole part of our Earth environment unusable," he added.

• SpaceX employees worked grueling hours and gritty conditions in the company's early days.
• Elon Musk offered workers SpaceX stock options to poach top talent and keep them motivated.
• One expert said that for stocks to work, companies have to give employees chances to cash in.

Working at SpaceX in the company's earliest days was intense, but it may pay off for some hires.

Tough working conditions might tank some businesses, but not SpaceX. On December 11, Bloomberg reported that the Elon Musk-founded company was valued at $350 billion, making it the most valuable private startup worldwide.

The value comes after SpaceX and some of its approved investors struck a deal to buy up to $1.25 billion of employees' shares, offering $185 a share. Therein lies a partial key to SpaceX's overwhelming success.

Like many tech startups, SpaceX offered its early employees stock options as a financial incentive to keep them invested in the company's success — even when they were exposed to Musk's strict standards, his bouts of shouting when things went wrong, and his near-impossible timelines, space journalist Eric Berger reported.

In his new book "Reentry," Berger shares current and former employees' accounts of working 36-hour days, sleeping under their desks, urinating in buckets, dodging rattlesnakes, and injuring themselves on the job.

Stock options are a toss-up. They don't always end up being valuable. SpaceX was proving its value early, though.

"Even as far back as 2010, you could see that that had real value if you stayed there," Berger told Business Insider.

How equity pushes employees

Offering stock options is a common strategy, especially for early-stage companies that don't have much cash for salaries, said Jorge Martin, head of the employee-equity plan provider North American branch of JP Morgan Workplace Solutions.

"When they are working these grinding hours, when they are traveling all over the world, when they're under high pressure," Martin said, "then all of that is worth it when you have an equity grant that can grow as the company grows and as the company succeeds."

Martin said he's occasionally seen startup employees become millionaires off their equity.

The promise of those stock options gave SpaceX a competitive edge in recruiting top engineering talent. In the scramble for new hires fresh out of college in the 2010s, SpaceX, Berger said, often competed with Blue Origin, a similarly ambitious rocket company founded by Jeff Bezos.

"They would poach people back and forth," Berger said.

Cashing in on company equity

Workers can turn shares into cash when a company gets sold or goes public — which SpaceX has not done — or when it does a "tender offer," allowing employees to sell their shares to other investors.

Blue Origin has a stock ownership program too, Berger said, but it's "considered virtually worthless because Bezos is probably never going to sell a significant chunk of the company. So those shares can never really be sold."

SpaceX, meanwhile, has given its employees multiple opportunities to cash in on their shares, including through the deal it struck this month.

Musk's Mars vision helped

SpaceX offered some of its early employees more than stock. Some truly believed in Musk's plans to build a human settlement on Mars.

Unlike a regimented job at NASA or a legacy aerospace corporation, a gig at SpaceX meant working hands-on with multiple ambitious rockets, spaceships, or engines — back to back or simultaneously.

"You're going to work super hard, but you're also going to get to work on cutting-edge stuff, stuff that's actually going to fly," Berger said. "After a few years there with that on your résumé, you can basically write your ticket anywhere in the industry you want to go."

For some employees, Berger found, the stock was icing on the cake.

SpaceX did not respond to a request for comment.

• Some scientists trying to create "mirror life" have stopped in their tracks.
• A mirror microorganism could end up being a major pathogen since our immune systems wouldn't notice it.
• Mirror-image biology inverts a fundamental property of life on Earth: which way molecules point.

Creating "mirror life" could be one of science's greatest breakthroughs, but some researchers who began the effort are now calling for it to stop.

No mirror-life microorganisms exist yet. However, 38 scientists warned in a paper published in the journal Science on December 12 that if someone created one and it escaped the lab, it could cause a catastrophic multi-species pandemic.

"We're basically giving instructions of how to make a perfect bioweapon," Kate Adamala, a co-author of the paper and a chemist who leads a synthetic biology lab at the University of Minnesota, told Business Insider.

As the risks became clear, Adamala ended her lab's efforts toward building a mirror cell. Her multi-year grant for that facet of their research expired and she decided not to apply for renewal, she said.

Now she's urging other scientists to do the same, along with the 37 other researchers.

"Although we were initially skeptical that mirror bacteria could pose major risks, we have become deeply concerned," they wrote in the paper.

What is mirror life?

Mirror biology takes a fundamental rule of life on Earth, called chirality, and flips it.

Chirality is the simple fact that molecules — like sugars and amino acids — point in one of two directions. They are either right-handed or left-handed.

For some reason, though, life will only use one chiral form of each molecule. DNA, for example, only uses right-handed sugars for its backbone. That's why it twists to the right.

In mirror biology, scientists aim to create living cells where all the chirality is flipped. Where natural life uses a right-handed peptide, to build proteins, mirror life would use the same peptide in its left-handed form.

Adamala's research was focused on making mirror peptides, which can help create longer-lasting pharmaceuticals.

A full mirror cell was the long-term goal of that research. Mirror cells could help prevent contamination in bioreactors that use bacteria for green chemical manufacturing because, in theory, they wouldn't interact with natural microorganisms.

"You could have this perfect bioreactor that can just sit there and you can stick your finger into it and you're not going to contaminate it," Adamala said. "That's also precisely the problem."

A mirror bacteria could bypass the natural checks and balances of life, like competing with other bacteria or battling our immune systems.

Immune systems would ignore mirror cells

Adamala said "the death sentence" for her mirror-cell research came when she spoke to immunologists. They explained that for humans, other animals, and plants, immune system activation depends on chirality.

Immune cells recognize pathogens' proteins, but they wouldn't detect the inverse versions of those proteins that mirror cells would use.

A mirror pathogen "doesn't interact with the host. It just uses it as a warm incubator with a lot of nutrients," Adamala said.

If a mirror bacteria escaped the lab, it could cause slow, persistent infections that can't be treated with antibiotics (because those, too, rely on chirality).

Because they wouldn't face any immune resistance, mirror bacteria wouldn't need to specialize in infecting corn, or goats, or birds.

"It would be a disease of anything that lives that can be infected," Adamala said.

In the worst-case scenario, a mirror bacteria would multiply endlessly, unfettered. It would take over its hosts and eventually kill them. It would destroy crops. It would have no predators. It would overwhelm entire ecosystems, swapping out portions of our natural world for a new mirror world.

A long way away

Ting Zhu, one of the leading researchers trying to make a mirror cell, told BI in an email that he supports being cautious but doesn't think "a complete mirror-image bacterium can be synthesized in the foreseeable future."

Zhu leads a mirror-image biology lab at Westlake University in China. He was not involved in the Science paper.

Adamala estimates that the world's first mirror bacteria is still about a decade away. She argues that's exactly why the research should stop now before it builds all the tools that someone could use to make that final leap.

"No one can do it on their own right now," Adamala said. "The technology is not mature enough, which means we're pretty well safeguarded against someone crazy enough to say, 'I'll just go do it.'"

In the meantime, Adamala and the other paper authors invited more research and scrutiny on the risks they've identified.

"If someone does prove us wrong, that would make me really happy," she said.

• A bird flu outbreak has ravaged the world's birds since 2020 and infected cattle earlier this year.
• California Gov. Gavin Newsom declared a state of emergency over the virus this week.
• Health officials also confirmed the first "severe" case of and hospitalization for the H5N1 virus.

The burgeoning global bird flu outbreak continued its flight path across the country this week, with two major developments that point to the virus's increasingly concerning spread.

California Gov. Gavin Newsom declared a state of emergency over the virus on Wednesday, citing a worrying number of infected herds throughout the state in recent months and a need for more resources.

Since the state first identified the H5N1 avian influenza virus in cattle in late August, California's agriculture department has confirmed 645 infected dairy herds.

Newsom's announcement, meanwhile, came just hours after health officials confirmed the first severe case of bird flu in Louisiana, saying a person was hospitalized with an infection after being exposed to sick birds in his backyard.

In recent months, infectious disease experts have grown more and more nervous about the possibility of a human pandemic linked to the virus, even as the Centers for Disease Control and Prevention has maintained that the public health risk for humans is low.

Here's where things stand.

Bird flu outbreak

The H5N1 virus first reemerged in Europe in 2020 and has since become widespread in birds around the world. The outbreak has killed tens of millions of birds and tens of thousands of sea lions and seals in recent years.

Birds carry the disease while migrating and can expose domestic poultry to the virus while never showing signs themselves, according to the CDC.

The virus jumped to cattle herds for the first time ever earlier this year in a major escalation. Then, in October, a pig in Oregon tested positive for the virus, an especially concerning case as swine can host both bird and human flu viruses.

There has been no known human-to-human transmission yet. Still, the growing pattern of mammal-to-mammal transmission has infectious disease experts on guard against the possibility that H5N1 could eventually become a human pandemic.

"If it keeps spreading in animals, then it is eventually going to cause problems for humans, either because we don't have food because they've got to start exterminating flocks, or because it starts to make a jump in humans," Dr. Jerome Adams, a former surgeon general and the director of health equity at Purdue University, told Business Insider in April.

"The more it replicates, the more chances it has to mutate," he added.

The ongoing multi-state dairy cattle outbreak, which is believed to have started in Texas, has infected 865 herds across 16 states, according to the CDC, and has led to a growing number of human cases among US dairy and poultry workers.

The CDC has thus far confirmed 61 reported human cases and seven probable cases across the US, though some scientists estimate that the real number of infections is higher.

More than half of the human cases are tied to interaction with sick cattle. The remaining infections have been traced to exposure to sick poultry or have an unknown origin, the CDC said.

State of emergency

California's Wednesday announcement will give state and local authorities increased resources to study and contain the outbreak, Newsom said.

"This proclamation is a targeted action to ensure government agencies have the resources and flexibility they need to respond quickly to this outbreak," the governor said in a statement.

Earlier this month, the Agriculture Department said it would start testing the nation's milk supply for traces of the virus, requiring dairy farmers to provide raw milk samples upon request. Up until then, cattle testing for potential infections had been almost entirely voluntary.

Dr. Monica Gandhi, a professor of medicine and associate chief of the Division of HIV, Infectious Diseases, and Global Medicine at the University of California, San Francisco, said the declaration will likely give California a greater ability to surveil dairy farms for signs of the virus.

But declaring a state of emergency could be a double-edged sword.

Phrases "like 'state of emergency,' given that we've just been through a pandemic, can induce panic," Gandhi said.

And it's not time to panic yet, she said.

Gandhi praised the CDC's "very measured" messaging around the virus thus far and said health officials are closely monitoring the spread.

• Two astronauts have been stuck on the space station after their Boeing spaceship had engine issues.
• Now, their return is being delayed another month to give SpaceX time to process a new spaceship.
• NASA and SpaceX are using the new ship, instead of a refurbished one, to expand SpaceX's fleet.

Two astronauts have been stuck on the International Space Station for months because of issues with Boeing's new Starliner spaceship.

Now, they'll have to stay just a bit longer because SpaceX needs extra time to prepare its Crew Dragon spaceship.

Butch Wilmore and Suni Williams were set to finally come back to Earth in February. Now the earliest they can return is in late March, NASA announced in a blog post on Wednesday.

While one month is not a terribly long delay by regular NASA mission standards, the extra time in orbit is significant considering Wilmore and Williams launched into space for a roughly eight-day mission way back in June.

SpaceX needs extra time to process a new spaceship

SpaceX's Crew-10 mission, originally scheduled for February, is supposed to relieve Wilmore and Williams and allow them to finally return home.

NASA and SpaceX recently decided, though, to use a new Dragon spaceship rather than a used, refurbished one for that launch, according to NASA's blog post.

The new spaceship will need extra time after it ships to SpaceX's processing facility in Florida in January. That's why NASA pushed back the launch date.

"Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail," Steve Stich, the manager of NASA's Commercial Crew Program, said in a statement.

This was "the best option for meeting NASA's requirements and achieving space station objectives for 2025," the blog post said.

SpaceX has reused Dragon spaceships for NASA missions in the past. However, a NASA spokesperson told BI that certifying the new spacecraft will expand the company's Crew Dragon fleet to five human-rated spaceships, for both NASA and private missions.

In a statement sent in an email, the spokesperson said that Wilmore, Williams, and their crewmate Nick Hague were "supportive of the path forward."

They added that the three astronauts "understood the possibilities and unknowns, including being aboard station longer than planned."

SpaceX did not immediately respond to a request for comment.

SpaceX to the rescue

The question of how Wilmore and Williams would get back to Earth arose soon after their launch.

As their newly-minted Boeing Starliner ship approached the ISS in early June, it experienced engine issues that raised NASA officials' eyebrows.

After weeks of testing and deliberating, NASA decided to send the Starliner back to Earth empty. Officials weren't confident enough that it was safe.

Meanwhile, Wilmore and Williams stayed on the space station. NASA reassigned them to its next mission with SpaceX, called Crew-9. They would have a ride home on that spaceship. Two other astronauts gave up their SpaceX seats to make room for the Boeing duo.

The catch was that Wilmore and Williams would have to serve the same six-month shift as the rest of Crew-9. They've been conducting experiments and maintenance on the ISS just like everyone else, with the promise of coming home in February.

Now, they'll have to wait another month.

"We appreciate the hard work by the SpaceX team to expand the Dragon fleet in support of our missions," Stich said in the Wednesday statement, adding his appreciation for "the flexibility of the station program and expedition crews."

• Gov. Gavin Newsom of California declared a "proactive" state of emergency over the H5N1 bird flu.
• The virus has spread rapidly through US dairy cattle herds, with 16 states affected.
• The CDC reports low public risk with no human-to-human spread, but 61 human cases have been detected.

Gov. Gavin Newsom of California declared a state of emergency over the H5N1 avian influenza virus on Wednesday.

The bird flu has been spreading rapidly through US dairy cattle herds since March, with infections confirmed in 16 states. Its jump from birds to cows surprised many virologists and raised concerns about the possibility that it could mutate enough to sustain human-to-human transmission.

For now, the US Centers for Disease Control and Prevention has not detected humans spreading the virus to each other and says the risk to the public remains low.

Still, 61 human cases have been confirmed across the country, with 34 of them in California. Many of these cases have been linked to infected cows or birds.

Newsom's declaration, which his office called a "proactive action," followed the detection of new cattle infections on dairy farms in Southern California, according to the office's statement.

"This proclamation is a targeted action to ensure government agencies have the resources and flexibility they need to respond quickly to this outbreak," Newsom said in a statement.

The FDA has said that grocery-shelf beef and dairy continue to be safe to consume. However, the FDA and unaffiliated virus experts have advised against drinking raw milk, which is not pasteurized and can contain harmful microorganisms.

"While the risk to the public remains low, we will continue to take all necessary steps to prevent the spread of this virus," Newsom said.

Also on Wednesday, the CDC confirmed the first case of severe symptoms in a human H5N1 infection, in Louisiana.

Slowing bird flu's spread

The H5N1 virus was first detected in a California cow on August 30. Since then, the governor's office reported, the state has distributed millions of pieces of protective equipment to dairy-farm workers and run a public education campaign.

Infectious-disease experts have previously told BI that limiting the virus's spread through cows can help reduce the odds of sustained human transmission.

That's because the more the virus replicates itself, the more opportunities it has to mutate, and the more new mutations can take hold and spread to new animals. As H5N1 spreads in cattle, a mammal population that lives close to humans, it gets more chances to adapt to humans.

"There's such a vast amount of virus at the moment. And clearly it is changing, and it's doing new and unexpected things," Christopher Dye, an epidemiologist and senior research fellow at the University of Oxford, told BI in June.

In a paper in the medical journal BMJ, Dye and his colleague Wendy Barclay argued that the risk of a major human outbreak was "large, plausible, and imminent" — but not inevitable.

When that paper was published in early June, there had only been three confirmed human cases in the US.

"Influenza has always been a concern for decades and decades, and this particular form of influenza for at least two decades," Dye said. Bird flu, he added, has "risen to a level of concern, I think, which is greater than ever before."

• The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn.
• Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs.
• From beaver invasions to giant holes, drastic changes in the Arctic are affecting the entire planet.

From Alaska to Siberia, the Arctic is changing so rapidly that there is no "normal" there now, scientists warn. The consequences reach across the globe.

The Arctic tundra now releases more carbon than it naturally draws down from the sky, as wildfires burn down its trees and permafrost thaw releases potent gases from its soil.

Once-brown regions are turning green with vegetation, while green areas are turning brown and barren. Sea ice and herds of caribou are disappearing.

This summer was the wettest on record for the Arctic overall, as rain is becoming more common than snow in some areas. Region by region, though, rainfall and the snow season are knocking down both high and low records.

Decades of data on "vital signs" suggest that "the Arctic exists now within a new regime, in which conditions year after year are substantially different than just a couple of decades ago," Twila Moon, a scientist at the National Snow and Ice Data Center, said in a briefing on Tuesday.

"Climate change is not bringing about a new normal," she added. "Instead, climate change is bringing ongoing and rapid change."

That's because the Arctic is warming about four times faster than the rest of the planet, according to previous research.

The increase in average temperatures is changing weather and landscapes in the Arctic, speeding up the climate crisis worldwide.

Giant holes, beaver invasions, and polar wildfires

For example, beavers are moving into Alaska's tundra and transforming its waterways with their dams, as warmer conditions have brought more wooded, comfortable riverbanks for them.

In Siberia, a giant hole in the ground is rapidly growing because the permafrost — a layer of soil that used to be permanently frozen — is thawing.

That's an extreme example, but melt and thaw is happening all over the planet's northernmost regions. Combined with drastic swings in weather year-to-year, these changes are wreaking havoc on Arctic landscapes, ecosystems, and people.

"These dramatic differences are making it difficult for communities to plan and they create safety issues for people who are used to more stable ice, snow, and temperature," Moon said.

She was presenting the Arctic Report Card, an update that the National Oceanic and Atmospheric Administration publishes each year, at the fall meeting of the American Geophysical Union.

This year's report revealed a crucial shift in northern landscapes: The Arctic tundra is no longer a net carbon sink, with its boreal forests pulling carbon dioxide from the sky. Now it's a net source of carbon emissions.

"This transition from a carbon sink to a source is of global concern," Brendan Rogers, a scientist studying the tundra at the Woodwell Climate Research Center, said in the briefing.

He added that the tundra's carbon emissions are relatively small for now, "but it's that transition that we're concerned about."

This shift is partly due to giant polar wildfires burning down tundra vegetation and all the carbon it's stored. It's also because of permafrost thaw, which releases large amounts of methane — a heat-trapping gas more potent than carbon dioxide — as bacteria in the soil digest thawing plant matter.

Meanwhile, rising Arctic temperatures are driving ice melt, including on the Greenland Ice Sheet, which is a major contributor to sea-level rise worldwide. Rising oceans are already increasing flooding in coastal cities across the planet.

For example, US coastal cities from Boston to San Diego have seen more and more flood days per year every decade since 1950, according to the Environmental Protection Agency.

Arctic science is more important than ever

Reporters asked the NOAA scientists about the incoming Trump administration and whether they were concerned about losing funding for their Arctic research.

"The need, the requirement, the demand signal if you will, is higher than ever before," Richard Spinrad, the NOAA Administrator, said in the briefing.

Changes in extreme weather and sea level across the globe show that "there's a need for these investments to increase right now," he said, adding that studies have shown "the return on those investments is extraordinary, in many cases 10 to 1 in terms of protection of lives and property."

• The billionaire Jared Isaacman said his Polaris missions with SpaceX are "a question mark" now.
• Donald Trump nominated Isaacman for NASA Administrator months after he did SpaceX's first spacewalk.
• Space experts doubt Isaacman will fly during his NASA term, due to job demands and safety risks.

SpaceX and its go-to billionaire-turned-private-astronaut seem to be going their separate ways, at least for the next four years.

Jared Isaacman has flown two SpaceX missions to space and is slated to fly two more.

However, Isaacman may no longer fly those missions now that President-elect Donald Trump has tapped him to lead NASA.

Isaacman is the founder and CEO of a payments-processing company called Shift4, but he's more famous for conducting the world's first commercial spacewalk in September.

The spacewalk was the main feature of the first mission of the Polaris Program, which Isaacman started in partnership with SpaceX to supercharge the company's human-spaceflight capabilities as it aims for the moon and Mars.

The program is scheduled to fly two future missions, including the first human flight aboard SpaceX's Starship mega-rocket.

Isaacman has previously indicated that he would be on board that flight. It would be a crucial step in Elon Musk's plans to establish a human settlement on Mars using Starship.

The NASA nomination throws that mission into uncertainty, Isaacman acknowledged on Wednesday.

"The future of the Polaris program is a little bit of a question mark at the moment. It may wind up on hold for a moment," Isaacman said at the Spacepower 2024 conference in Orlando, according to Reuters.

Indeed, shortly after his nomination, experts told Business Insider that it was unlikely Isaacman would fly to space during his term as NASA Administrator.

"Well, it certainly has never happened before," John Logsdon, the founder of the Space Policy Institute at George Washington University, told BI.

That doesn't mean it can't happen, but Logsdon added, "NASA Administrator is a full-time, high-level government job. Taking time off to train for and carry out another spaceflight seems to me to be a little implausible."

If Isaacman wanted to fly a SpaceX mission during his NASA term, "that would take some thought on his part and the rest of the team," George Nield, a former head of the FAA's office of commercial space transportation, told BI. "What's the risk, what's the benefit, what happens if there's a bad day, and are there succession plans?"

Nield co-authored a 2020 analysis which calculated that US spaceflight has a 1% fatal failure rate, because four out of nearly 400 spaceflights have ended in deadly malfunctions. That's a rate 10,000 times greater than commercial airliners.

The US Senate has to confirm Isaacman's nomination before he can take office.

"Having the boss of the enterprise take the risk of spaceflight would be unusual, but we live in unusual times," Logsdon said.

• Trump's choice of NASA Administrator suggests he wants to shake up the agency's status quo.
• Jared Isaacman, a billionaire and SpaceX astronaut, is a mascot of the commercial space age.
• He might push for getting humans to the moon and Mars faster, but he'll have to go through Congress.

President-elect Donald Trump has made a bold choice for NASA's new leader.

Trump announced in a Truth Social post on Wednesday that his choice for NASA Administrator is Jared Isaacman — a CEO, fighter-jet pilot, and two-time SpaceX astronaut.

Isaacman is not exactly a traditional pick. For one, he would be the first billionaire to lead the agency. More importantly, though, he's on the cutting edge of the new commercial space age, where private companies are becoming the biggest actors in space.

Some past NASA administrators were former NASA astronauts. Others were former executives from the aerospace industry. Many were politicians — including Trump's last NASA chief, Jim Bridenstine, and the current administrator, Bill Nelson.

Isaacman is none of those things. He has, however, flown to space in a Crew Dragon spaceship, conducted the first-ever commercial spacewalk in a brand-new SpaceX spacesuit, and plans to fly on future missions with the company — aboard its Starship mega-rocket, no less.

The nomination, which still has to be confirmed by the Senate, suggests that Trump wants to shake things up at NASA.

"He certainly has the potential to be a disruptor," Leroy Chiao, a former NASA astronaut and International Space Station commander who now works in consulting, told Business Insider. "I think it's a great pick. It's much better than just status quo — another retiring member of Congress."

It's also another signal that Trump might make a big push to put the next humans on the moon, and even the first humans on Mars.

Speeding up the road to Mars

Isaacman's enthusiasm for space exploration isn't his only bona fide. He also has a businessman's mindset and a close relationship with Elon Musk. The two share the goal of getting humans to Mars.

Chiao hopes Isaacman can speed up the process.

Indeed, in a post on X accepting the nomination, Isaacman wrote that NASA would help make humanity "a true spacefaring civilization."

"Americans will walk on the Moon and Mars and in doing so, we will make life better here on Earth," he added.

NASA is already working on it. The Artemis program began as the last Trump administration's iteration of a multi-president effort to send humans to deep space again. Artemis aims to send astronauts back to the moon for the first time in over 50 years, and eventually to use the moon as a jumping-off point to send people to Mars.

However, Artemis is years behind schedule and billions over budget, largely due to technical and programmatic challenges with the giant Space Launch System that NASA is building for moon missions. Many industry commentators see SLS as a waste of government funds, when NASA could instead lean on commercial heavy-lift rockets like Starship.

"Frankly, we have been at the status quo of this exploration program in one form or another over the last several presidents since 2004," Chiao said, "and we're not even close to launching the first astronaut on a new vehicle."

In fact, NASA just pushed back the launch date for its first crewed Artemis mission, set to fly around the moon using SLS. On Thursday the agency delayed the mission by another seven months, to April 2026, citing issues with the system's Orion spaceship.

That's the slow-moving status quo that Trump might aim to shake up.

To that end, efficiency may be a top priority for Isaacman. That could mean reassessing Artemis entirely or cutting back some of NASA's centers and facilities nationwide, according to Abhi Tripathi, a former NASA engineer and SpaceX mission director who now leads mission operations at the UC Berkeley Space Sciences Lab.

"I definitely think SLS will be on the chopping board," Tripathi told BI.

First, though, Isaacman will have to go through Congress.

"He is going to ruffle a lot of feathers," Chiao said.

Pushing through Congress

Congress can be a formidable wall for anyone trying to revolutionize NASA.

In places like Alabama and Southern California, a status quo NASA fuels the work of legacy aerospace contractors like Boeing and Northrop Grumman.

"The majority of members of Congress want jobs in their district, and they look at the space program primarily through that lens," Tripathi said.

Plus, he added, "the lobbying arms of all of those big contractors will be basically camped outside their congressional representative's office, asking them to thwart any big plans that would change the status quo greatly."

It'll all come to a head when the Trump White House makes its budget proposal. That's when Congress will approve or deny any cuts or reprioritizations that Trump and his NASA Administrator try to make.

If Trump wants to put boots on Mars fast, he'll have to convince individual Congress members to push those changes through.

"I think Jared is a very smart and capable individual," Tripathi said, "but his ability to wield power will completely depend upon how much his president will back him up."

• A 7.0-magnitude earthquake struck off the shore of Northern California Thursday morning.
• Tsunami warnings have been lifted across northern California and southern Oregon.
• Aftershocks are ongoing, and there's a small chance they could outdo the first quake.

A major earthquake struck near California's coast on Thursday, and aftershocks are still ongoing.

The 7.0-magnitude earthquake struck at about 10:44 a.m. Pacific Time. Its epicenter was offshore, about 62 miles west-southwest of Ferndale, California, according to data from the United States Geological Survey.

The USGS website reported more than 35 smaller quakes across that area over the ensuing three hours, of magnitudes ranging from 2.5 to 4.7, including two quakes that occurred inland.

"There's been quite a lot of aftershocks," Harold Tobin, Washington's state seismologist and the director of the Pacific Northwest Seismic Network, told Business Insider.

As of Thursday afternoon, the USGS forecasts up to 130 aftershocks with a magnitude of 3 or higher within the next week, and a 53% chance of aftershocks larger than magnitude 5.

"It's perfectly plausible that there could be a larger aftershock or more than one larger aftershock," Tobin said.

The USGS estimates the odds are 1 in 100 of an aftershock with a magnitude of 7 or greater.

The fault that slipped

The fault region which produced the 7.0 earthquake is a very seismically active one.

It's called the Mendocino triple junction because three different tectonic plates meet there: the Pacific, North American, and Juan de Fuca plates.

It's right between two notorious earthquake zones, at the northern end of the San Andreas fault and the southern end of the Cascadia Subduction Zone. The CSZ has some of the planet's greatest seismic potential, capable of producing quakes as big as 9.0.

The Mendocino triple junction, however, is less impressive.

"Somewhere in the magnitude sevens range is about as big as things seem to get out there," Tobin said.

The region has produced five earthquakes of magnitude 7 or larger in the past century, according to USGS.

The Thursday quake could have slightly increased the chance of other earthquakes along adjacent faults by increasing stress in those areas.

"It's unlikely that it had a really large, significant impact" on those fault systems, though, Tobin said. The odds are "not zero, but very low," he added.

Tsunami scare

The initial quake triggered tsunami warnings and evacuations — which have since been canceled — along the coast of northern California to southern Oregon, including the San Francisco Bay Area.

The warnings lasted about an hour. The National Tsunami Warning Center canceled them around 11:54 a.m. local time, saying there was no longer a threat.

Most likely, the reason there was no tsunami is that the earthquake came from plates moving side-by-side against each other. This is called a strike-slip earthquake. Because the motion was mostly horizontal, and not vertical, it didn't push the ocean above upward to create a wave.

Even so, the warning was "warranted," Tobin said.

"Until we know enough parameters of the earthquake and can verify whether there is or isn't an actual wave, it's wise to have those warnings," he added.

Possible earthquake damage

The USGS also reported on X a "low likelihood of shaking-related fatalities. Some damage is possible and the impact should be relatively localized."

Governor Gavin Newsom declared a state of emergency for three counties in Northern California which were near the offshore epicenter of the quake.

"We're concerned about damage," he said in a press briefing, adding that the declaration would allow the state to "provide more resources."

According to CNN, about 10,000 homes and businesses in Humboldt County — the area nearest the epicenter — were without power immediately after the large quake. As of Thursday afternoon, though, PowerOutage.us reported fewer than 500 customers without power there.

Newsom said that "early damage assessments are being made," but that the state had no additional information to share yet.

This is a developing story, check back for more information.

• Bill Gates said 2024 brought a corporate "pivot" toward climate tech, in a foreword to a new report.
• The report, by Gates's firm Breakthrough Energy, urged VCs to "prime the pump" on climate startups.
• While new climate tech emerges, proven solutions like solar energy still need help proliferating.

This has been a big year for the technologies that could save our planet.

America's first large offshore wind farm began powering homes. The Bill Gates-backed startup Graphyte opened its first carbon-removal plant in Arkansas. Another startup, Sublime Systems, secured a site and funding for its first low-carbon cement manufacturing facility.

There's also been a "corporate climate pivot," according to a report by Breakthrough Energy, a climate investment firm and startup catalyzer founded by Gates.

"We noticed a subtle, but important, perspective shift from both the investors and corporations we engage with," Gates wrote in an intro to the report, which the firm published in October with the tagline "climate tech has arrived."

More than just reducing their carbon footprint, corporate leaders "want to get in at the ground floor of new industries that, one day, will be crucial to the survival of their businesses," Gates wrote.

Other industry experts also told Business Insider that climate tech is picking up steam, and now emerging companies need more funding to scale up.

Corporate investment in climate tech

Breakthrough Energy focuses on its own partners in the report, such as American Airlines investing in a startup making hydrogen-based plane fuel. It's not the only VC firm seeing large corporations lean into climate tech more, though.

A number of long-standing corporate partners, like the chemicals giant BASF or the building-materials manufacturer Saint-Gobain, work with the nonprofit climate-tech incubator Greentown Labs to support early-stage companies.

Aisling Carlson, the senior vice president of partnerships at Greentown, told BI that the firm's oldest corporate partners have been hiring, "beefing up" their teams that invest in emerging climate tech.

"Their approach to climate innovation and their internal expertise has matured," Carlson said.

Meanwhile, other corporations are beginning to engage with climate tech for the first time. Carlson said Greentown has seen new interest from corporations that haven't invested much in climate tech, though no partnerships have been publicly announced yet.

"They are all thinking about their carbon footprint and how they can decarbonize," she added.

Don't forget about old reliables like solar

Though new technologies, like direct air capture plants that suck carbon out of the sky, can be part of the solution, Foley wants investors and politicians to remember that fighting climate change is a race against time.

"Let's deploy things that actually are cheap enough and scalable enough and ready enough," like solar power, battery storage, EV charging stations, and other tech that's already proliferating, he said.

We also have to shut down coal-fired power plants and plug abandoned gas wells that leak methane, Foley said. Efforts to stop deforestation can prevent huge amounts of carbon emissions and they're "desperately starved for money," he added.

These are the low-hanging fruits of fighting climate change.

Foley said that Gates has a history of investing in "science fiction experiments" that don't move fast enough, such as small modular nuclear reactors. After nearly 20 years of development and Gates's investment, there still isn't a single one in operation.

Sustainable aviation fuel is a similar "boondoggle," Foley said.

"That's a science experiment still, and it doesn't need or deserve billions of tax dollars," he said, adding that public funding should go to reliable solutions.

Breakthrough Energy did not respond to a request for comment.

VC can 'prime the pump' on garage innovators

Lots of futuristic climate tech just needs the funding to deploy and scale up, Gates wrote. The Breakthrough Energy report argues that venture capitalists, investors, or corporations should get in on it now, at the ground floor.

"By waiting, venture firms are only hurting their own bottom lines," the report says. By getting in early, though, investors can "prime the pump" and help early-stage companies design a product that's scalable and capable of attracting even bigger investment.

However, funding for climate tech slowed down this year, Carlson said, possibly due to investors taking a "wait and see" stance in the lead-up to the US election.

Indeed, Biden administration initiatives have boosted climate tech in recent years including the Inflation Reduction Act, the Bipartisan Infrastructure Law, and the CHIPS and Science Act.

New policies have driven more government investment in green concrete and steel, according to the Breakthrough Energy report, and the IRA created more than two dozen tax credits for investing in clean-energy projects. Breakthrough concluded those credits could unlock "more than $1 trillion in private sector investment."

However, incentives like that could change with the new Trump administration.

"What I am hopeful for is that corporate commitments to net zero targets will continue to drive innovation," Carlson said. "And if there are unfavorable federal policies, that the private sector can continue to play a driving role in ensuring at least that the early-stage climate technologies are getting to market."