Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

Ursa Major wins contract for hypersonic test flight of its Draper rocket engine

9:29 am

The rocket engine startup Ursa Major has now won a $28.5 million contract from the Air Force Research Laboratory to do a hypersonic test flight using its Draper rocket engine.

The contract, announced May 1, covers both the flight demonstration and integration of the engine into a test vehicle, with work scheduled through early 2027. The project aims to advance U.S. capabilities in hypersonic weapons, a category of defense systems that has become a top Pentagon priority amid competition with China and Russia.

The Draper engine is designed to produce 4,000 pounds of thrust and was developed by Ursa Major with U.S. Air Force funding. Its key differentiator is its use of storable, non-cryogenic propellants — specifically a kerosene and hydrogen peroxide combination — that remain liquid at ambient temperatures. This contrasts with traditional rocket engines that rely on liquid oxygen, which must be kept at ultra-low temperatures and handled with complex cooling infrastructure.

It certainly does appear that the Pentagon is ramping up its hypersonic research with a slew of contracts to many different new commercial space startups. In addition to this deal, Rocket Lab, Varda, and Stratolaunch have won contracts for similar hypersonic testing, with Rocket Lab winning the most. No wonder a new company like Radian (see previous post) is switching its focus toward this research.

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Rocket startup Radian now also building commercial reentry capsule

9:20 am

The rocket startup Radian Aerospace, which is attempting to build an orbital spaceplane that takes off and lands from a runway, has announced that it is also building a commercial reentry capsule that can be used for hypersonic testing.

The Seattle based company announced April 29 its intent to develop the Radian Reusable Reentry Vehicle (R3V), a spacecraft for hypersonics testing or returning payloads from space that also gives Radian flight experience in key technologies for its future Radian One spaceplane.

Livingston Holder, chief technology officer of Radian, said in an interview that the company was looking was ways to test Dur-E-Therm, the thermal protection system it is creating for Radian One. The company had recently completed tests of the system in a lab at NASA’s Glenn Research Center. “But, testing in a non-flight environment only gets you so far, so we were crafting how to test it in a more relevant environment.”

It appears the company has recognized that its spaceplane will take years to develop, and more years before it can bring in any revenue. An orbital capsule however can be developed much more quickly, and it also appears there are a lot of commercial and military customers for it.

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May 1, 2025 Quick space links

3:17 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

  • Claiming budget uncertainty, NASA delays by a year deadline for relatively small astrophysics mission proposals
    There are budget uncertainties, but I have no doubt this decision is mostly aimed at ginning up opposition to any cuts at NASA at all. It’s an old NASA tactic: Threaten cuts in a broad indiscriminate manner to get Congress and the President to retreat from any cuts. Today’s specific decision tells me we really need a new hard-nosed administrator at NASA who won’t let lower management play these games. Whether Isaacman is that man however remains unknown.
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Giant galactic magnetic filament disturbed by pulsar

12:18 pm

A giant galactic filament disturbed by a pulsar
Click for original image.

Cool image time! The false-color X-ray picture to the right, reduced and sharpened to post here, was released today by the science team for the Chandra X-ray Observatory, showing some interesting astronomical features about 26,000 light years away near the galactic center.

The press release attempts to catch the ignorant press’s interest by referring to the long white filament that crosses this image as “a bone”, implying that this is similar to a medical X-ray of a person’s bones. Hogwash. What we are looking at is a filament of energized particles forced into this long thin shape by the magnetic field lines that exist in the central regions of the Milky Way galaxy.

What makes this X-ray data of interest is shown in the inset. The pulsar appears to have disturbed that filament, pulling those energetic particles away to form a trailing cloud.

In the first composite image, the largely straight filament stretches from the top to the bottom of the vertical frame. At each end of the grey filament is a hazy grey cloud. The only color in the image is neon blue, found in a few specks which dot the blackness surrounding the structure. The blue represents X-rays seen by NASA’s Chandra X-ray Observatory.

In the annotated close-up, one such speck appears to be interacting with the structure itself. This is a fast-moving, rapidly spinning neutron star, otherwise known as a pulsar. Astronomers believe that this pulsar has struck the filament halfway down its length, distorting the magnetic field and radio signal.

As big and empty as space is, there is still enough stuff within it to cause these kinds of interactions. It just requires the luxury of endless eons, something that we as short-lived humans have trouble conceiving.

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A Martian river of ice

11:54 am

A Martian river of ice
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on January 26, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The science team labeled it “Looking for Gullies” because the researchers were likely searching for such geological features on the cliff wall that runs down the right side of the picture.

What is more significant however about this picture is the glacier features in the canyon below that cliff. The downhill grade is to the southwest, and it is very evident that the canyon is filled with glacial-type debris, flowing down that grade. Along the base of the cliff the flow seems focused but squeezed, the larger blocks to the west moving slower and thus acting like a wall themselves. In between the flow moves like rapids in a narrow part of a river, albeit in slow motion.
» Read more

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Astronomers discover a cluster of a thousand very young stars that is flying apart for unknown reasons

10:01 am

Astronomers using data from Gaia, which measured the precise distance and position of more than two billion stars, have discovered a very young cluster of a thousand stars that is flying apart for unknown reasons.

The cluster is about 650 light-years away in Ophiuchus, the Serpent Bearer, and has been nicknamed “Ophion” in honor of its resident constellation. “Ophion is filled with stars that are set to rush out across the galaxy in a totally haphazard, uncoordinated way, which is far from what we’d expect for a family so big,” said Huson in a statement. “What’s more, this will happen in a fraction of the time it’d usually take for such a large family to scatter. It’s like no other star family we’ve seen before.”

You can read the peer-reviewed paper here [pdf]. The scientists proposed several theories that might explain what disrupted this cluster so early in its history, but none are very convincing, with the data available.

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Scandal at Great Britain’s first spaceport at Cornwall airport

9:45 am

A local council in Cornwall has withdrawn £200K of funding from spaceport operations at the local airport — the first spaceport established in Great Britain where Virgin Orbit launched its last flight — because one council member responsible for distributing the funds was also at the same time getting a job at the spaceport without telling anyone.

The decision has come after it was revealed that the council’s then cabinet member for the economy Cllr Louis Gardner – who oversaw SPF allocation as part of his portfolio – was actually in the process of getting a top job at the Spaceport when he was part of an Economic Prosperity Board meeting on February 27. He was among members who agreed to give the space hub the £200k levelling up money. He didn’t declare an interest during the meeting.

Days later it was announced he had got the £70,000 head of future air and space role, which sees him controlling a budget which would have included the £200,001 fund previously agreed by him and other Economic Prosperity Board members. On accepting the Spaceport role he stood down from his position as the local authority’s Conservative cabinet member for the economy and will retire as a Newquay councillor on Cornwall Council at the election tomorrow (Thursday, May 1).

It appears this kerfuffle is also linked to the continuing collapse of the conservative Tory Party in Great Britain. Gardner is a Tory, and it appears his actions convinced two other Tory councilors to publicly break from that party and join Nigel Farage’s Reform party.

Before the meeting even started there was no escaping what many are calling a “scandal” when Tory rebels Cllr Steve Arthur (Perranporth) and Cllr John Conway (Launceston South) arrived wearing NASA spacesuits, much to the amusement of many of their colleagues. The councillors, who resigned from the Conservative group to start an independent non-aligned group, said they had pulled the stunt to highlight the issue.

The decision to withdraw this money however makes sense from another perspective. The spaceport has no customers, as there are literally no rocket companies in existence at present able to launch from an airport runway. Cornwall’s only customer, Virgin Orbit, went bankrupt after its one launch there failed.

Nor should anyone expect any new rocket companies to appear eager to use Cornwall. The red tape that Virgin Orbit had to clear to launch took almost a year, and that delay was part of the reason the company went belly-up. It used up its cash reserves waiting for Great Britain’s bureaucrats to fill out forms.

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Startup that builds maneuverable surveillance satellites raises $260 million in private investment capital

9:27 am

The startup True Anomaly has raised $260 million in private investment capital in order to fully develop its Jackal maneuverable satellite, designed to travel and inspect other orbiting satellites for the military.

The Colorado-based company announced April 30 that it closed a Series C round that combines equity and debt financing. Venture firm Accel led the round, with participation from Meritech Capital and several existing backers including Eclipse, Riot Ventures, Menlo Ventures, and Narya. Stifel Bank is providing the debt portion of the raise.

Only founded in 2022, True Anomaly has already flown two test missions of Jackel. With these new funds, it plans four more flights in the next year and a half.

There are already a number of other companies building maneuverable satellites. Most however are focused on providing tug services for commercial satellites or for finding and removing space junk. True Anomaly is instead targeting the military as its customer, which appears a smart move because no one else has, up to now.

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April 30, 2025 Quick space links

2:54 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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Psyche asteroid probe experiences an unexplained engine problem

12:36 pm

Psyche's flight path to the asteroid Psyche
Psyche’s flight path to the asteroid Psyche.
Click for original image.

The probe Psyche, presently on its way to the asteroid of the same name, has experienced a thruster issue with its electric ion-type main engine that has forced engineers to postpone further engine use as they troubleshoot the problem.

Psyche began firing its thrusters in May 2024. On April 1, the spacecraft detected a pressure drop in the line that feeds the xenon gas to the thrusters, going from 36 pounds per square inch (psi) to about 26 psi. As designed, the orbiter powered off the thrusters in response to the decrease.

The mission team has chosen to defer thrusting while engineers work to understand the pressure decrease. The mission design supports a pause in thrusting until at least mid-June before the spacecraft would see an effect on its trajectory. The electric propulsion system has two identical fuel lines, and the team may decide to switch to the backup fuel line to resume thrusting.

This mission has been plagued with problems. First its software was completed late, forcing a year delay in its launch. Next it was discovered — too late to fix — that transistors on the spacecraft had not been properly hardened for the hostile environment of space. Engineers hope these transistors “will heal themselves” once in that environment, but there are no guarantees. [My memory is becoming fuzzy. As many of my readers pointed out, this transistor problem was with Europa Clipper, not Psyche.]

Now its electric ion engine, essential to getting it to Psyche, is not working properly.

If this problem is fixed and Pysche resumes engine firing, it is targeting an arrival at the asteroid Psyche in 2029.

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Jared Isaacman’s nomination approved by Senate committee

12:24 pm

The Senate Commerce, Science, and Transportation Committee today voted 19 to 9 in favor of Jared Isaacman, Trump’s nominee to become NASA administrator.

The vote was 19-9, with all Republicans and four Democrats voting yes and nine Democrats voting no. The four Democratic yes votes were Senators Maria Cantwell (Washington), Tammy Baldwin (Wisconsin), John Hickenlooper (Colorado) and Andy Kim (New Jersey).

The nine Democratic no votes were Senators Amy Klobuchar (Minnesota), Brian Schatz (Hawaii), Ed Markey (Massachusetts), Gary Peters (Michigan), Tammy Duckworth (Illinois), Jacky Rosen (Nevada), Ben Ray Luján (New Mexico), John Fetterman (Pennsylvania) and Lisa Blunt Rochester (Delaware).

The opposition here is almost solely based on Trump Derangement Syndrome. The only policy for these Democrats is to oppose all things Trump, even if that opposition makes no sense. This is not to say that Isaacman is a perfect choice. At the moment it is not clear exactly where he stands on Trump’s effort to shrink the waste in the federal government, including NASA.

Isaacman’s nomination still has to be confirmed by the full senate. Expect him to be approved handily, with the vote breaking down along similar party lines.

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Chinese crew returns safely after six months in space

9:36 am

A Chinese crew of three safely landed in northern China today after completing a six month mission on China’s Tiangong-3 space station.

The return capsule of the Shenzhou-19 crewed spaceship, carrying astronauts Cai Xuzhe, Song Lingdong and Wang Haoze, touched down at the Dongfeng landing site in north China’s Inner Mongolia Autonomous Region on Wednesday. The three astronauts are all in good health condition, according to the China Manned Space Agency.

Lots of pictures of the landing and recovery at the link, but that’s pretty much the entire text of the press release from China’s state-run press. As that state-run press does routinely, it repeats that same text as the caption under every picture, over and over again, changing it only slightly for the close-up pictures of each astronaut.

A new crew took over for this one on Tiangong-3, beginning their own six month mission. At the moment China has completed three years of continuous occupation out of a planned ten-year mission.

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April 29, 2025 Quick space links

3:24 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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Firefly launch fails

12:20 pm

In its first launch attempt in 2025, Firefly’s Alpha rocket had a problem shortly after the first stage separated from the upper stage and the upper stage’s engines began firing. The upper stage began swivel somewhat though it appeared to stablize after a few seconds.

Subsequent reports confirmed that the stage failed to reach orbit.

The launch of the FLTA0006 mission appeared to go as planned until stage separation about 2 minutes and 35 seconds after liftoff. A cloud suddenly formed between the two stages, and video showed what appeared to be debris falling away as the upper stage continued its ascent.

A camera on the upper stage also showed debris falling away from it seconds after separation. The nozzle for the single Lightning engine in the upper stage appeared to be seriously damaged, if not missing entirely.

In a statement four and a half hours after launch, Firefly confirmed that the upper stage and its payload failed to reach orbit because of the stage separation issue. “The rocket then experienced a mishap between stage separation and second stage ignition that led to the loss of the Lightning engine nozzle extension, substantially reducing the engine’s thrust,” the company stated.

Alpha has now launched a total of six times, but only two of those launches were completely successful. Two of the other launches got their payloads into orbit, but not at the proper positions. In all the failures but one, the problems were with the upper stage. Today’s failure is another example of this.

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Weather scrubs first test of experimental vertical take-off/landing rocket built by Middle Eastern startup

11:09 am

Middle East, showing Oman's proposed spaceport
The Middle East, showing the location of
Oman’s proposed spaceport at Duqm.

The first test flight of Horus-4, an experimental vertical take-off/landing rocket built by the Middle Eastern startup Advanced Rocket Technologies, was scrubbed yesterday supposedly due to weather.

The launch had been part of the first public event at Oman’s proposed Etlaq spaceport near the coastal city of Duqm.

Oman’s Etlaq spaceport opened its doors to the public for the first time on Monday, hosting a three-day fan zone experience designed to spark interest in space exploration among the country’s youth.

The event had originally been scheduled to culminate with the launch of the Horus-4 experimental rocket, developed by London company Advanced Rocket Technologies (ART). But unsuitable weather forced the test flight to be delayed, with a new launch date to be announced soon.

Pupils from across Duqm – a coastal town about 550km from Oman’s capital city of Muscat – took part in a variety of educational activities. The fan zone, called Etlaq FX, included four tents that were placed about 3km from the spaceport’s operations team and launch pad, with the site overlooking the Arabian Sea.

At the moment the Duqm spaceport is mostly a launch site for small suborbital rockets. Oman however is pushing hard to sell it to rocket companies, with launches of such small rockets by a variety of startups and Middle Eastern nations scheduled throughout the rest of this year.

Of those launches the most ambitious is that of Advanced Rocket Technologies Horus-4. If it flies and lands successfully, it will be a major technological achievement for the company, and the Arab part of the Middle East.

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Astronaut Don Pettit, 70, wants to fly more missions in space

10:54 am

Despite his apparent significant discomfit upon landing last week after seven months in orbit, American astronaut Don Pettit is still eager to fly more times in space, despite celebrating his 70th birthday on the day he returned from ISS.

Pettit landed in Kazakhstan with his two Russian Soyuz MS-26 crewmates on April 20, 2025 local time in Kazakhstan, his 70th birthday. Cameras cut away as he was extracted from the capsule, raising concerns about his health. During a post-mission briefing today he explained that “I was right in the middle of emptying the contents of my stomach onto the steppes of Kazakhstan” and the cameraman kindly gave him the privacy he needed. He added that his body reacts to the return to Earth about the same way every time regardless of duration.

He looked fit today, just a week later.

At the briefing Pettit noted how returning to Earth can be very discomfiting, but with a little effort and time recovery occurs. He also noted how weightlessness is wonderful for older humans.

“I love being in space,” he said. “When you’re sleeping, you’re just floating, and your body, all those little aches and pains heal up. You feel like you’re 30 years old again and free of pain, free of everything. So I love being on orbit. It’s a great place to be for me and my physiology.”

Whether Pettit gets another flight is unclear. There are a lot of medical research reasons to fly an older individual like him in space. Whether NASA wants to do it is another question. The agency has generally been very timid about doing such things.

Pettit also claimed at this briefing that ISS could fly well past 2030, and shouldn’t be de-orbited then as planned. He however likely spent almost all his time in orbit on the American half, and likely has limited information about the stress fractures in the Russian Zvezda module.

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Head of the FAA’s commercial space office takes Trump buy-out

10:36 am

Kelvin Coleman, the head of the FAA office that regulates and issues all launch licenses, has now decided to accept the buy-out offered by the Trump administration and retire.

Coleman has led the FAA’s Office of Commercial Space Transportation, known as AST, since 2022, after being named deputy associate administrator in 2017. During that time, the amount of commercial launch activity has grown enormously, from 23 licensed launches in 2017 to 157 in 2024.

That has put a strain on the office, which the FAA has responded to by seeking additional staff and other resources, as well as streamlining the licensing process. The latter included new launch and reentry licensing regulations, called Part 450, that took effect in 2021.

Industry, though, has complained about the implementation of Part 450, leading the FAA to create a space-related Aerospace Rulemaking Committee, or SpARC, to collect industry input on ways to improve Part 450. FAA officials said at the Commercial Space Conference in February that the SpARC was expected to complete its work by July, and that it was working on other improvements, such as a new electronic system for license applications.

It was apparently under Coleman’s leadership that Part 450 was created and implemented. The FAA claimed it would streamline the licensing process. Instead, it did the exact opposite. Under Coleman and Part 450, the red tape from the FAA actually increased significantly, to the point that it apparently caused the several rocket startups to close down.

It is quite possible therefore that Coleman decided to take the buy-out because he suspected his time at the FAA was limited anyway, that the Trump administration wanted him out.

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Since last night four more launches globally

10:26 am

UPDATE: The Firefly launch was a failure. There was a problem during stage separation. See post above.

The worldwide pace of launches continues now relentlessly. Since my last launch post yesterday afternoon, there were four more launches across the global.

First, China launched a “group” of satellites for an “internet constellation,” its Long March 5B rocket lifting off from its coastal Wencheng spaceport. The rocket used a new upper stage which allowed its core stage to shut down sooner and thus not enter orbit to later crash uncontrolled (as earlier Long March 5B cores would do). Instead it fell back into the ocean after launch.

Next, SpaceX sent another 23 Starlink satellites into orbit, its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida. The first stage, flying for the very first time, landed successfully on a drone ship in the Atlantic.

Third, Arianespace, the commercial division of the European Space Agency (ESA), used the Italian rocket company Avio’s Vega-C rocket to place an ESA Earth observation radar satellite dubbed Biomass into orbit, lifting off from French Guiana. This was Arianespace’s second launch in 2025. Though Arianespace managed the launch, it is being phased out. By next year all future launches of Vega-C will be sold and managed by Avio instead, cutting out this bureaucratic middle-man.

Fourth, the American rocket startup Firefly attempted to place a Lockheed Martin demo payload into orbit, its Alpha rocket lifting off from Vandenberg in California. The Lockheed Martin payload is part of a deal that could include as many as 25 launches over the next five years. This was Firefly’s first launch in 2025.

A scheduled launch by Russia of its Angara rocket on a classified military mission was apparently scrubbed, though no information at all has been released as to why the launch did not occur.

The leaders in the 2025 launch race:

50 SpaceX
23 China
5 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 50 to 40.

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Texas legislators vote down bill giving SpaceX power to close Boca Chica roads

9:57 am

The House State Affairs Committee in the Texas state legislature yesterday voted 7 to 6 to reject a bill that would have given SpaceX the power to close the roads at Boca Chica rather than local county officials.

By a vote of seven “nays” to six “ayes,” members of the Texas House State Affairs Committee narrowly voted down Senate Bill 2188 — the companion to state Rep. Janie Lopez’s, R-San Benito, House Bill 4660. With the vote, the committee has declined to refer the bill to the House floor for a full vote.

The identical bills would shift control of road closures from Cameron County officials to SpaceX and the mayor of the likely new city of Starbase.

It appears there is still a chance the bill could get a vote in the full legislature this year, but that will require parliamentary maneuvers and deal making.

The bill lost because of a heavy campaign by a range of special interest activist groups, some of which have been working to block all of SpaceX’s activities in south Texas because they simply hate Elon Musk. At the same time, there are certainly valid reasons to question putting this power in the hands of a single private company.

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ULA launches Amazon’s first 27 Kuiper constellation satellites; SpaceX launches more Starlinks

4:17 pm

Two more launches today. First, SpaceX completed another Starlink launch, placing 27 satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg in California, with its first stage completing its 25th flight, landing on a drone ship in the Pacific.

Next, ULA successfully launched the first 27 Kuiper internet constellation satellites for Amazon, its Atlas-5 rocket lifting off from Cape Canaveral in Florida.

As of posting the Kuiper satellites have not yet been deployed. As this was ULA’s first launch this year, the company is not included in the leader board for the 2025 launch race.

49 SpaceX
22 China
5 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 49 to 38. Two more launches are still scheduled for today, one by SpaceX placing more Starlinks into orbit, and a second a classified Angara launch out of its Plesetsk spaceport in northeastern Russia.

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Watch Atlas-5 launch of Amazon’s first 27 Kuiper satellties

3:23 pm

I have embedded below the live stream of the launch today of ULA’s Atlas-5 rocket, carrying the first 27 satellites for Amazon’s planned 3,200 satellite Kuiper internet constellation designed to compete directly against SpaceX’s Starlink.

The first launch attempt several weeks ago was scrubbed due to weather. This is one of fifteen Atlas-5’s still in ULA’s inventory, eight of which are reserved for Kuiper launches, six of which are reserved for future missions of Boeing’s manned Starliner capsule, and one of which will place into geosynchronous orbit a communications satellite for Viasat.

After these launches ULA will rely entirely on its new Vulcan rocket.

» Read more

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April 27, 2025 Quick space links

3:13 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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Hubble snaps picture of barred spiral galaxy

10:04 am

A barred spiral galaxy as seen by Hubble
Click for original image.

Cool image time! While NASA celebrates the 35th anniversary of the Hubble Space Telescope with photos from its past, astronomers continue to use it to produce new wonders. The picture to the right, cropped, reduced, and sharpened to post here, was taken by Hubble recently and released today.

NGC 5335 is categorized as a flocculent spiral galaxy with patchy streamers of star formation across its disk. There is a striking lack of well-defined spiral arms that are commonly found among galaxies, including our Milky Way. A notable bar structure slices across the center of the galaxy. The bar channels gas inwards toward the galactic center, fueling star formation. Such bars are dynamic in galaxies and may come and go over two-billion-year intervals. They appear in about 30 percent of observed galaxies, including our Milky Way.

The theorized formation process of that bar is based on computer modeling using the limited data we presently have, and thus carries a great deal of uncertainty.

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NASA re-releases a slew of Hubble images to celebrate its 35th anniversary

9:23 am

Eta Carina, in focus, after 1993 repair mission
Eta Carina, in focus, after 1993 repair mission

As part of its celebration of the telescope’s 35th anniversary, NASA on April 25, 2025 re-released what it called 27 key images from the history of the Hubble Space Telescope.

More than half the images are historical, showing the telescope’s conception by astrophysicist Lyman Spitzer, its construction, its launch in 1990, and its repair in 1993 of its faulty optics. The subsequent sharp astronomical images include only a few of Hubble’s most famous and significant later photographs, including the first Hubble Deep Field, the Hourglass planetary nebula, and the Pillars of Creation snapshot.

What NASA did not include in this collection however was without doubt to those alive at the time after Hubble was finally repaired its most historically significant photo. That picture is to the right. It shows the exploding star Eta Carina as taken by Hubble in 1993 right after its repair.

For the very first time, we had a telescope above the Earth’s fuzzy atmosphere capable of taking sharp in-focus images of the mysteries of the heavens. And for the first time, we could see in this star its actual nature. It wasn’t simply surrounded by a pretty cloud — as all previous ground-based images had suggested — that cloud was formed by eruptions from the star itself. Those earlier eruptions, which had occurred in the previous century, had spewed from the star’s poles, forming two bi-polar clouds that were expanding away from the star most dramatically.

In the three decades since astronomers have used Hubble and its later upgraded cameras to track those expanding clouds, with the most recent photo taken in 2019. Hubble has shown that such massive heavenly objects are not static, but evolving, and with the right high resolution telescopes in space we can track that evolution, in real time.

At the moment no comparable replacement of Hubble is planned, or even on the drawing board. The Einstein space telescope, just launched, will provide magnificent optical images at a slight lower resolution. So will China’s planned Xuntian space telescope, set for launch in 2027. Neither however matches Hubble’s capabilities.

And Hubble is now long past its original lifespan of fifteen years. Though engineers say it is in good shape, this is not true. It presently has only two trustworthy working gyroscopes. To extend its lift, the telescope is operated on only one gyroscope, with a second held back in reserve. When these go, however, so will Hubble.

Meanwhile, the astronomy community continues to put most of its energy in building giant ground-based telescopes that not only cannot match Hubble but are threatened by the coming wave of new communication constellations. Do they rethink their approach and shift to orbital astronomy?

Nah. Instead, the astronomical community demands new powers to to ban those constellations!

Of all people, one would think astronomers more than anyone else would not put their head in the sand. But that’s what they continue to do.

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China and SpaceX complete launches

8:39 am

Both China and SpaceX completed launches yesterday. First, China placed what its state-run press called “a data relay” satellite into orbit, its Long March 3B rocket lifting off from its Xichang spaceport in southwest China.

No word on where there rocket’s lower stages and four strap-on boosters crashed inside China. All use very toxic hypergolic fuels.

Next SpaceX launched 23 more Starlink satellites, including 13 configured for cell-to-satellite service, its Falcon 9 rocket lifting off from Cape Canaveral in Florida. The first stage completed its 20th flight, landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

48 SpaceX
22 China
5 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 48 to 37, with three more launches scheduled for later today. China will use its Long March 5B, its largest rocket, to launch a set of communications satellites, SpaceX will launch another set of Starlink satellites, and ULA will make its second attempt to launch Amazon’s first set of Kuiper internet satellites, the first launch scrubbed due to weather.

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Axiom replaces its CEO

2:42 pm

In a move that apparently promotes one of its most productive managers, space station startup Axiom has now picked Tejpaul Bhatia, its chief financial officer for the past four years, to take over as the company’s CEO.

The choice seems sound, considering what Bhatia has done already for the company.

Ghaffarian cited Bhatia’s work as chief revenue officer at Axiom as a key reason to make him CEO. Axiom noted in a statement that Bhatia secured more than $1 billion in contracts since joining Axiom, including overseeing the company’s series of private astronaut missions to the International Space Station.

…Bhatia came to Axiom from Google, where he was involved in its cloud computing business. He earlier founded and led several startups and worked on ESPN’s video streaming business.

Considering other rumors that suggest the company has been experiencing cash flow issues, this pick might be aimed at alleviating those issues.

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April 25, 2025 Quick space links

3:26 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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