Once again, we're back with our annual power ranking of US launch companies. 2024 was the third year Ars compiled a list of the most accomplished rocket companies in the United States with the goal of sparking debate, discussion, and appreciation for the challenge of operating a successful launch company.

This is a difficult business, both technically and financially. We salute all the engineers, technicians, and business development people out there giving this industry a go.

Please note that this is a subjective list, although hard metrics such as total launches, tonnage to orbit, success rate, and more were all important factors in our decisions. And our focus remains on what each company accomplished in 2024, not on what they might do in the future.

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After a long career as a politician from Florida, former astronaut Bill Nelson has served as NASA's administrator for the last three and a half years. He intends to resign from this position in about two weeks when President Joe Biden ends his term in the White House.

Several significant events have happened under Nelson's watch at NASA, including the long-delayed but ultimately successful launch of the James Webb Space Telescope, the flight of the first Artemis mission, and the momentous decision to fly Boeing's Starliner spacecraft back to Earth without crew aboard. But as he leaves office, there are questions about ongoing delays with NASA's signature Artemis Program to return humans to the Moon.

Ars spoke with Nelson about his time in office, the major decisions he made, and the concerns he has for the space agency's future under the Trump administration. What follows is a lightly edited transcript of our conversation.

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NASA has plans to return humans to the moon with the Artemis mission—but Elon Musk’s preference for Mars could have influence in the Trump administration.

Although SpaceX founder Elon Musk is known for outspokenness and controversial comments on his social media site X, he has been relatively restrained when it comes to US space policy in recent years.

For example, he has rarely criticized NASA or its overall goal to return humans to the Moon through the Artemis Program. Rather, Musk, who has long preferred Mars as a destination for humans, has more or less been a team player when it comes to the space agency's lunar-focused plans.

This is understandable from a financial perspective, as SpaceX has contracts worth billions of dollars to not only build a Human Landing System as part of NASA's Artemis Program but also to supply food, cargo, and other logistics services to a planned Lunar Gateway in orbit around the Moon.

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Welcome to Edition 7.25 of the Rocket Report! Happy New Year! It's a shorter edition of the newsletter this week because most companies (not named Blue Origin, this holiday season) took things easier over the last 10 days. But after the break we're back in the saddle for the new year, and eager to see what awaits us in the world of launch.

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.

Avio lands atop list of European launch firms. You know it probably was not a great year for European rocket firms when the top-ranked company on the continent is Avio, which launched a grand total of two rockets in 2024. The Italian rocket firm earned this designation from European Spaceflight after successfully completing the final flight of the Vega rocket in September and returning the Vega C rocket to flight in December.

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The Russian space program reached a significant milestone over the holidays with the 2,000th launch of a rocket from the "R-7" family of boosters. The launch took place on Christmas Day when an R-7 rocket lifted off, carrying a remote-sensing satellite from the Baikonur Cosmodrome.

This family of rockets has an incredible heritage dating back nearly six decades. The first R-7 vehicle was designed by the legendary Soviet rocket scientist Sergei Korolev. It flew in 1957 and was the world's first intercontinental ballistic missile. Because the first Soviet nuclear warheads were massive, the R-7 vehicle was powerful enough to be converted into an orbital rocket.

A modified version of the R-7 rocket, therefore, launched the Sputnik satellite later in 1957. And the slightly more powerful "Vostok" version of the booster carried Yuri Gagarin into space in 1961, opening the era of human spaceflight. The first Soyuz variant, a rocket that has been upgraded multiple times but remains similar to its original form, flew in 1966. Humans still fly on the Soyuz rocket today to the International Space Station.

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We’d been chatting for the better part of two hours when Chris Kraft’s eyes suddenly brightened. “Hey,” he said, “Here’s a story I’ll bet you never heard.” Kraft, the man who had written flight rules for NASA at the dawn of US spaceflight and supervised the Apollo program, had invited me to his home south of Houston for one of our periodic talks about space policy and space history. As we sat in recliners upstairs, in a den overlooking the Bay Oaks Country Club, Kraft told me about a time the space shuttle almost got canceled.

It was the late 1970s, when Kraft directed the Johnson Space Center, the home of the space shuttle program. At the time, the winged vehicle had progressed deep into a development phase that started in 1971. Because the program had not received enough money to cover development costs, some aspects of the vehicle (such as its thermal protective tiles) were delayed into future budget cycles. In another budget trick, NASA committed $158 million in fiscal year 1979 funds for work done during the previous fiscal year.

This could not go on, and according to Kraft the situation boiled over during a 1978 meeting in a large conference floor on the 9th floor of Building 1, the Houston center’s headquarters. All the program managers and other center directors gathered there along with NASA’s top leadership. That meeting included Administrator Robert Frosch, a physicist President Carter had appointed a year earlier.

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The art of space mission patches is now more than six decades old, dating to the Vostok 6 mission in 1963 that carried Soviet cosmonaut Valentina Tereshkova into low-Earth orbit for nearly three days. The patch for the first female human spaceflight showcased a dove flying above the letters designating the Soviet Union, CCCP.

That patch was not publicly revealed at the time, and the use of specially designed patches was employed only infrequently by subsequent Soviet missions. NASA's first mission patch would not follow for two years, but the practice would prove more sticky for missions in the United States and become a time-honored tradition.

The first NASA flight to produce a mission-specific patch worn by crew members was Gemini 5. It flew in August 1965, carrying astronauts Gordon Cooper and Pete Conrad on an eight-day mission inside a small Gemini spacecraft. At the time, it was the longest spaceflight conducted by anyone.

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After a long day of stops and starts that stretched well into the evening, and on what appeared to be the company's fifth attempt Friday, Blue Origin successfully ignited the seven main engines on its massive New Glenn rocket.

The test firing came as fog built over the Florida coast, and it marks the final major step in the rocket company's campaign to bring the New Glenn rocket—a privately developed, super-heavy lift vehicle—to launch readiness. Blue Origin said it fired the vehicle's engines for a duration of 24 seconds. They fired at full thrust for 13 of those seconds.

"This is a monumental milestone and a glimpse of what’s just around the corner for New Glenn’s first launch," said Jarrett Jones,  senior vice president of the New Glenn program, in a news release. "Today’s success proves that our rigorous approach to testing—combined with our incredible tooling and design engineering–is working as intended."

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The Trump transition team is looking for “big changes” at NASA—including some cuts.

Although the details remain in flux, the transition team reviewing NASA and its activities has begun to draft potential executive orders for changes to space policy under the Trump Administration.

Sources familiar with the five people on the team, who have spent the last six weeks assessing the space agency and its exploration plans, were careful to note that such teams are advisory in nature. They do not formally set policy nor is their work always indicative of the direction an incoming presidential administration will move toward.

Nevertheless, in trying to set clear goals for NASA and civil space policy, the ideas under consideration reflect the Trump administration's desire for "big changes" at NASA, both in terms of increasing the effectiveness and velocity of its programs.

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On Christmas Eve, NASA's fastest-moving probe will come closer than ever to the surface of the sun.

Almost no one ever writes about the Parker Solar Probe anymore.

Sure, the spacecraft got some attention when it launched.  It is, after all, the fastest moving object that humans have ever built. At its maximum speed, goosed by the gravitational pull of the Sun, the probe reaches a velocity of 430,000 miles per hour, or more than one-sixth of 1 percent the speed of light. That kind of speed would get you from New York City to Tokyo in less than a minute.

And the Parker Solar Probe also has the distinction of being the first NASA spacecraft named after a living person. At the time of its launch, in August 2018, physicist Eugene Parker was 91 years old.

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In a widely anticipated test, Blue Origin may ignite the seven main engines on its New Glenn rocket as soon as Thursday at Launch Complex-36 in Florida.

This is the final test the company must complete before verifying the massive rocket is ready for its debut flight, and it is the most dynamic. This will be the first time Blue Origin has ever test-fired the BE-7 engines altogether, in a final rehearsal before launch.

The company did not respond immediately to a request for comment, but the imminent nature of the test was confirmed by a NASA official.

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In a wide-ranging interview with a Russian television station, the chief executive of Russia's main space corporation said the country is now planning to participate in the International Space Station project all the way to NASA's desired goal of 2030.

"In coordination with our American colleagues, we plan to de-orbit the station sometime around the beginning of 2030," the country's chief space official, Yuri Borisov, said during the interview. "The final scenario will probably be specified after the transition to a new NASA administration."

While the documents for such an extension have not been signed, these comments appear to represent a change in tone from Russia. When he first became head of Roscosmos in 2022, Borisov said Russia would leave the station partnership "after" 2024, which was interpreted as shortly thereafter. Later, Russia committed to working with NASA to keep the orbital outpost flying only through 2028. The US space agency has expressed a consistent desire to keep flying the station until 2030, after which point it hopes that private space station operators can provide one or more replacement facilities.

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A new investigation from The New York Times suggests that SpaceX founder Elon Musk has not been reporting his travel activities and other information to the Department of Defense as required by his top-secret clearance.

According to the newspaper, concerns about Musk's reporting practices have led to reviews by three different bodies within the military; the Air Force, the Office of the Under Secretary of Defense for Intelligence and Security, and the Defense Department Office of Inspector General.

However, none of the federal agencies cited in the Times article has accused Musk of disclosing classified material.

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Welcome to Edition 7.23 of the Rocket Report! We're closing in on the end of the year, with a little less than three weeks remaining in 2024. Can you believe it? I hardly can. The biggest question left in launch is whether Blue Origin will make its deadline for launching New Glenn by the end of this year. It's been a long-time goal of founder Jeff Bezos, but the clock is ticking. We wish them luck!

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.

Virgin Galactic studies Italian spaceport. The US-based suborbital space tourism company said Thursday it has signed an "agreement of cooperation" with Italy's civil aviation authority to study the feasibility of Virgin Galactic conducting spaceflight operations from Grottaglie Spaceport in the Puglia region of Southern Italy. Phase one of the study, anticipated to be completed in 2025, will examine Grottaglie’s airspace compatibility with Virgin Galactic’s requirements and unique flight profile.

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In recent days, there has been a smattering of coverage in state-run Russian media outlets about how the Belarusian army has developed its own satellite Internet service akin to SpaceX's Starlink constellation, called "Kulisa."

According to the TASS news service, for example, the Kulisa mobile communications technology has "already entered service and is being used in military units of the Armed Forces."

And Pravda, which started out as the official newspaper of Russia's Communist Party more than a century ago, taunted the developer of the technology, saying, "How's that for you, SpaceX?"

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Eleven months after the Ingenuity helicopter made its final flight on Mars, engineers and scientists at NASA and a private company that helped build the flying vehicle said they have identified what probably caused it to crash on the surface of Mars.

In short, the helicopter's on-board navigation sensors were unable to discern enough features in the relatively smooth surface of Mars to determine its position, so when it touched down, it did so moving horizontally. This caused the vehicle to tumble, snapping off all four of the helicopter's blades.

Delving into the root cause

It is not easy to conduct a forensic analysis like this on Mars, which is typically about 100 million miles from Earth. Ingenuity carried no black box on board, so investigators have had to piece together their findings from limited data and imagery.

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There is, of course, no quantitative way to rank amazing things that happen in space. We cannot measure their absolute magnitude nor assign them a numerical value, and trying to do so is something of a fool’s errand. Are we fools? Maybe. But we're fools who like to have a little fun.

Understandably, then, this list is completely subjective. How else could one rank events that span the cosmos, from gravitational wave detection to the launch of humans into suborbital space? What follows is a list of the most incredible, surprising, impressive, and demanding achievements and developments in space and spaceflight during the first 25 years of the 2000s—as selected by the editors of Ars Technica.

You will probably disagree with some choices and their ranking, and that’s totally fine. That’s what the comments section is for. But the point here is simply to bring some of these incredible moments back onto the front burner so we can all bask in their glory once again. Each of these achievements deserves our celebration and appreciation.

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