Welcome to Edition 7.44 of the Rocket Report! We had some interesting news on Thursday afternoon from Down Under. As Gilmour Space was preparing for the second launch attempt of its Eris vehicle, as part of the pre-launch preparations, something triggered the payload fairing to deploy. We would love to see some video of that. Please.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Rotating detonation rocket engine takes flight. On Wednesday, US-based propulsion company Venus Aerospace completed a short flight test of its rotating detonation rocket engine at Spaceport America in New Mexico, Ars reports. It is believed to be the first US-based flight test of an idea that has been discussed academically for decades. The concept has previously been tested in a handful of other countries, but never with a high-thrust engine.

Read full article

Comments

A US-based propulsion company, Venus Aerospace, said Wednesday it had completed a short flight test of its rotating detonation rocket engine at Spaceport America in New Mexico.

The company's chief executive and co-founder, Sassie Duggleby, characterized the flight as "historic." It is believed to be the first US-based flight test of an idea that has been discussed academically for decades, a rotating detonation rocket engine. The concept has previously been tested in a handful of other countries, but never with a high-thrust engine.

"By proving this engine works beyond the lab, Venus brings the world closer to a future where hypersonic travel—traversing the globe in under two hours—becomes possible," Duggleby told Ars.

Read full article

Comments

The White House Office of Management and Budget dropped its "skinny" budget proposal for the federal government earlier this month, and the headline news for the US space program was the cancellation of three major programs: the Space Launch System rocket, Orion spacecraft, and Lunar Gateway.

Opinions across the space community vary widely about the utility of these programs—one friend in the industry predicted a future without them to be so dire that Artemis III would be the last US human spaceflight of our lifetimes. But there can be no question that if such changes are made they would mark the most radical remaking of NASA in two decades.

This report, based on interviews with multiple sources inside and out of the Trump administration, seeks to explain what the White House is trying to do with Moon and Mars exploration, what this means for NASA and US spaceflight, and whether it could succeed.

Read full article

Comments

This week's Tuesday Telescope photo is pretty meta as it features... a telescope.

This particular telescope is under construction in the Atacama Desert in northern Chile, one of the darkest places on Earth with excellent atmospheric visibility. The so-called "Extremely Large Telescope" is being built on a mountaintop in the Andes at an elevation of about 3,000 meters.

And it really is extremely large. The primary mirror will be 39 meters (128 feet) in diameter. Like, that's gigantic for an optical telescope. It is nearly four times larger than the largest operational reflecting telescopes in the world.

Read full article

Comments

NASA is considering scaling back its activities on the International Space Station, according to multiple sources. The changes, which are being considered primarily due to shortfalls in the space station budget, include:

• Reducing the size of the crew complement of Crew Dragon missions from four to three, starting with Crew-12 in February 2026
• Extending the duration of space station missions from six to eight months
• Canceling all upgrades to the Alpha Magnetic Spectrometer science instrument attached to the station

The changes align with a desire that was reflected in the Trump administration's "skinny budget" proposal for NASA, released last Friday, which seeks to have the US space agency reduce its activities on the ISS.

"The Budget reduces the space station’s crew size and onboard research, preparing for a safe decommissioning of the station by 2030 and replacement by commercial space stations," stated the budget request for fiscal year 2026. "Crew and cargo flights to the station would be significantly reduced. The station’s reduced research capacity would be focused on efforts critical to the Moon and Mars exploration programs."

Read full article

Comments

Although we are still waiting for SpaceX to signal when it will fly the Starship rocket again, the company got some good news from the Federal Aviation Administration on Tuesday.

After a lengthy review, the federal agency agreed to allow SpaceX to substantially increase the number of annual launches from its Starbase launch site in South Texas. Previously, the company was limited to five launches, but now it will be able to conduct up to 25 Starship launches and landings during a calendar year.

"The FAA has determined that modifying SpaceX’s vehicle operator license supporting the increased launch and landing cadence of the Starship/Super Heavy launch vehicle would not significantly impact the quality of the human environment," states the document, known as a Mitigated Finding of No Significant Impact. This finding was signed by Daniel P. Murray, executive director of the FAA's Office of Operational Safety.

Read full article

Comments

Most astronauts these days are fairly anonymous, and chances are you have never heard of Nichole Ayers. And that's OK.

But sometimes it's worth pausing for a moment to reflect on just how accomplished these people are. Ayers, 36, flew the supersonic F-22 stealth aircraft in the international war against the Islamic State and rose to become a major in the US Air Force before being selected as a NASA astronaut in 2021. Oh, yeah, she also completed a master's degree in computational and applied mathematics at Rice University.

For her first spaceflight, Ayers launched on the Crew-10 mission to the International Space Station in March. This flight got a fair amount of media attention, but that was largely because the arrival of Crew-10 allowed the Crew Dragon spacecraft to which Butch Wilmore and Suni Williams were assigned to return home. Since then, Ayers has spent 50 days in space, astronauting. This included a spacewalk last week, her first, alongside veteran astronaut Anne McClain.

Read full article

Comments

The rocket was there. And then it decidedly was not.

Shortly after sunrise on a late summer morning nearly nine years ago at SpaceX's sole operational launch pad, engineers neared the end of a static fire test. These were still early days for their operation of a Falcon 9 rocket that used super-chilled liquid propellants, and engineers pressed to see how quickly they could complete fueling. This was because the liquid oxygen and kerosene fuel warmed quickly in Florida's sultry air, and cold propellants were essential to maximizing the rocket's performance.

On this morning, September 1, 2016, everything proceeded more or less nominally up until eight minutes before the ignition of the rocket's nine Merlin engines. It was a stable point in the countdown, so no one expected what happened next.

Read full article

Comments

The White House released a "skinny" version of its budget proposal for fiscal year 2026 on Friday, including financial information for all federal agencies. A "skinny" budget simply means that while the document contains top-line numbers for agencies and their programs, it does not provide much in the way of specific allocations.

The document was delivered to the Senate Committee on Appropriations on Friday and signed by Russell Vought, director of the White House Office of Management and Budget. A "full fiscal plan" will follow in the coming weeks. This is the first step in the budget process, in which Congress has the critical role of actually writing a budget.

"I look forward to working with you to achieve significant budgetary savings for the American people within the spending programs under your jurisdiction," Vought wrote.

Read full article

Comments

In the nearly two months since former Google chief executive Eric Schmidt acquired Relativity Space, the billionaire has not said much publicly about his plans for the launch company. However, his intentions for Relativity now appear to be increasingly clear: He wants to have the capability to launch a significant amount of computing infrastructure into space.

We know this because Schmidt appeared before the House Committee on Energy and Commerce during a hearing in April, speaking on the future of AI and US competitiveness. Among the topics raised then was the need for more electricity—both renewable and non-renewable—to power data centers that will facilitate the computing needs for AI development and applications. Schmidt noted that an average nuclear power plant in the United States generates 1 gigawatt of power.

"People are planning 10 gigawatt data centers," Schmidt said. "Gives you a sense of how big this crisis is. Many people think that the energy demand for our industry will go from 3 percent to 99 percent of total generation. One of the estimates that I think is most likely is that data centers will require an additional 29 gigawatts of power by 2027, and 67 more gigawatts by 2030. These things are industrial at a scale that I have never seen in my life."

Read full article

Comments

Welcome to Edition 7.42 of the Rocket Report! For about a decade now, we've been following the development of the Starbase facility in South Texas. Up until 2019, progress was slow, but then the Starship program kicked into high gear, and SpaceX built up a production site beneath tents. The area has come a long way since then, and as soon as this weekend, there may be a new municipality, Starbase, in Texas.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.

Firefly's Alpha rocket fails again. Firefly Aerospace launched its two-stage Alpha rocket from California early Tuesday, but something went wrong about two-and-a-half minutes into the flight, rendering the vehicle unable to deploy an experimental satellite into orbit for Lockheed Martin, Ars reports. The booster stage jettisoned from Alpha's upper stage two-and-a-half minutes after liftoff, and that's when things went awry. A bright cloud of white vapor appeared high in the sky, indicating an explosion—or something close to it.

Read full article

Comments

The US Senate Commerce Committee on Wednesday advanced the nomination of private astronaut and businessman Jared Isaacman as the next administrator of NASA to the Senate floor, setting up the final step before he is confirmed.

The vote was not unanimous, at 19–9, with all of the nay votes coming from senators on the Democratic side of the aisle.

However, some key Democrats voted in favor of Isaacman, including the ranking member of the committee, Maria Cantwell, D-Wash. Before the vote, Cantwell said she appreciated that a candidate like Isaacman, with his background in business and private spaceflight, could bring new ideas and energy to the space agency.

Read full article

Comments

NASA Astronaut Don Pettit returned to Earth 10 days ago, landing in Kazakhstan. During his latest mission, his third long-duration on the International Space Station, Pettit brought his brand of wonderment to the assignment.

During his time in microgravity, Pettit, an inveterate tinkerer, said he likes to spend his free time either doing experiments in microgravity he cannot do on Earth or taking images to bring the experience back home. At a news conference Monday, Pettit was asked why he took so many images—670,000!—during his most recent stay on the space station.

"When I'm looking out the window, just enjoying the view, it's like, 'Oh, wow, a meteor. Look at that. Man, there's a flash there. What's that? Oh, look at that volcano going off. Okay, where's my camera? I gotta record that.' And part of this drive for me is when your mission is over, it's photographs and memories. When you want to share the experience with people, you can share the memories through verbal communication, like we're doing now, but the photographs are just another dimension of sharing what it's like. It's an experience where most people on Earth right now can't share, and I can try to give them a glimpse through my imagery."

Read full article

Comments

Not many people celebrate their birthday by burning a fiery arc through the atmosphere, pulling 4.4gs in freefall back to planet Earth, thudding into the ground, and emptying their stomach on the steppes of Kazakhstan.

No one has ever done it on their 70th birthday.

Perhaps this is appropriate because NASA astronaut Don Pettit is a singular individual. His birthday is April 20, and when the Soyuz spacecraft carrying him landed at dawn in Kazakhstan, the calendar had turned over to that date. John Glenn, then 77, was older when he went to space. But no one as old as Pettit had spent as long as he had in orbit, 220 days, on a mission.

Read full article

Comments

In the nearly two weeks since Ars reported on the Trump administration's proposed budget cuts for NASA's science programs, scientists and Democratic lawmakers have both expressed deep concerns about the future of the space agency.

However, in a pattern consistent across a host of issues in which GOP lawmakers do not want to be seen to be publicly criticizing the Trump administration, the response to these sweeping cuts from Republican officials has been much more muted.

But this week, three prominent Republican space policy officials broke their silence. In an op-ed published Tuesday on Real Clear Science, former House Speaker Newt Gingrich, former House Chair Robert Walker, and the head of the landing team for NASA for the Trump-Vance transition team, Charles Miller, said they were "deeply disturbed" by the proposed cuts. All three men have played an important role in setting Republican space policy over the last decade.

Read full article

Comments

I'll bet you don't spend a ton of time thinking about Deimos, the smaller of the two Martian moons, which is named after the Ancient Greek god that personified dread.

And who could blame you? Of the two Martian moons, Phobos gets more attention, including as a possible waystation for human missions to Mars. Phobos is larger than Deimos, with a radius of 11 km, and closer to the Martian surface, a little more than 9,000 km away.

By contrast, Deimos is tiny, with a radius of 6 km, and quite a bit further out, more than 23,000 km from the surface. It is so small that, on the surface of Mars, Deimos would only appear about as bright in the night sky as Venus does from Earth.

Read full article

Comments

This week's flight of the New Shepard spacecraft, NS-31, and its all-female crew has stirred up a mess of coverage, from tabloids to high-brow journalism outlets. And why not? Six women, led by superstar Katy Perry, were flying into space!

By contrast, Ars Technica has been largely silent. Why? Because yet another suborbital flight on New Shepard matters little in the long arc of spaceflight history. Beyond that, I did not want to be too negative about someone else's happiness, especially since it was privately funded. Live and let live, and all of that.

However, if I'm being frank, this flight and its breathless promotion made me uncomfortable. Let me explain. Perhaps the most important change in spaceflight over the last two decades has been the rise of commercial spaceflight, which is bringing down the cost of access to space and marks an essential step to humanity becoming a spacefaring species. This rising tide has been spurred in large part by billionaires, particularly Elon Musk, Jeff Bezos, and, to a lesser extent, Richard Branson.

Read full article

Comments

Welcome to Edition 7.40 of the Rocket Report! One of the biggest spaceflight questions in my mind right now is when Blue Origin's New Glenn rocket will fly again. The company has been saying "late spring." Today, the Aerospace Safety Advisory Panel said they were told June. Several officials have suggested to Ars that the next launch will, in reality, occur no earlier than October. So when will we see New Glenn again?

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.

Phantom Space delays Daytona launch, again. In a story that accepts what Phantom Space Founder Jim Cantrell says at face value, Payload Space reports that the company is "an up-and-coming launch provider and satellite manufacturer" and has "steadily built a three-pronged business model to take on the industry’s powerhouses." It's a surprisingly laudatory story for a company that has yet to accomplish much in space.

Read full article

Comments

Should the city of Houston, which proudly bills itself as "Space City," have a prized Space Shuttle orbiter on public display?

More than a decade ago, arguably, the answer was yes. After all, the Space Shuttle program was managed from Johnson Space Center, in southeastern Houston. All the astronauts who flew on the shuttle trained there. And the vehicle was operated out of Mission Control at the Houston-based facility.

But when the final decisions were being made to distribute the shuttles 15 years ago, the Houston community dragged its feet on putting together a competitive proposal. There were also questions about the ability of Space Center Houston to raise funding to house the shuttle within a new display area, which magnified concerns that the historical vehicle, like a Saturn V rocket before it, would be left outside in the region's humid environment. Finally, other cities offered better proposals for displaying the shuttles to the public.

Read full article

Comments

Was the James Webb Space Telescope worth it?

Well, $10 billion is a lot of money. Even when spread over a couple of decades, that's still a huge chunk of NASA's annual science budget. (And given the recent Trump administration attack on NASA's science budget, money is about to get a whole lot tighter.)

However, it is difficult to put a price on advancing our species' understanding of the natural world and the wide Universe we're swimming in. And Webb is doing an amazing job of that.

Read full article

Comments