Trump is withdrawing Jared Isaacman’s nomination for NASA administrator

Jared Isaacman
Jared Isaacman

According to numerous reports in various news outlets today and first revealed at Semafor, President Trump has informed Jared Isaacman that he is withdrawing his nomination for NASA administrator.

The White House is pulling the nomination of Jared Isaacman to be the next NASA administrator, just days before he was set to receive a confirmation vote in the Senate, according to three people familiar with the matter and confirmed by the administration.

It must be emphasized that many of these stories speculate absurdly about the reasons for this decision, such as the Washington Post suggestion, underlined by conservative reporter Laura Loomer, that it was Isaacman’s links with Elon Musk that caused this decision, implying that Trump as problems with Musk, something that seems blatantly wrong based on Trump’s positive and many public expressions of support for Musk.

The Semafor story however indicated the most likely reason for this decision, by quoting one White House spokeswoman:

“It’s essential that the next leader of NASA is in complete alignment with President Trump’s America First agenda and a replacement will be announced directly by President Trump soon,” said Liz Huston, a spokesperson for the White House.

This statement confirms something I sensed in March, before anyone else. I noted Isaacman’s past support for Democratic Party candidates and his apparent support in his companies for DEI, and wondered if the delay in getting him confirmed was due to headwinds in the White House and Republican Party over these issues. As I noted then:

These facts suggest to me that within both the Trump administration and among Republican in the Senate there are now second thoughts about Isaacman. Trump’s experience in his first administration, with federal appointees constantly sabotaging his efforts behind his back, has made him very determined to only bring people into his second administration he is certain to trust. Isaacman’s long support for the Democratic Party as well as DEI could be the reason the administration is delaying his confirmation.

More recently Isaacman has publicly expressed some concerns about the budget cuts at NASA proposed by the White House. Those tweets could have been the final blow to his nomination.

For Isaacman, this simply means that he can resume his own private Polaris space program, and align it with Musk’s parallel private Starship program to send humans to Mars, with both entirely without any government funding.

Trump budget proposes putting a final end to the delayed and blocked Thirty Meter Telescope

There is a lot more to report, and I will do so in a day or so, but I thought it worthwhile to quickly note the the proposed science cuts in the proposed Trump budget for 2026 includes the elimination of all funds for Thirty Meter Telescope (TMT) in Hawaii.

In the budget request, NSF [National Science Foundation]… says it will back only one of the two $3 billion optical telescopes that the astrophysics community wants to build. That honor goes to the Giant Magellan Telescope already under construction in Chile. Its competitor, the Thirty Meter Telescope (TMT), “will not advance to the Final Design Phase and will not receive additional commitment of funds from NSF,” according to the budget request.

The NSF has never had enough money to finance both telescopes. The fact that TMT has been blocked for more than a decade by DEI protesters in Hawaii, with the aid of the state government (controlled entirely by Democrats), makes funding it pointless, and a waste of the taxpayers’ money. It long past time to pull the plug.

As I say, there is a lot more details to report in this budget proposal, including its effort to slash a lot of science government spending, but that will have to wait for later essays. I can promise you one thing, however: I will not do what the rest of the press does, and write a knee-jerk propaganda piece in support of that spending. The science mafia at NASA and the NSF and other agencies has funded a lot of junk in the last few decades. It is time for a reckoning.

In demanding an investigation by SpaceX into the Starship failure on this week’s test flight, the FAA puffs up its chest and pounds it like a chimpanzee

My heart be still: As reported in numerous propaganda media outlets today, the FAA has announced that it is demanding an investigation by SpaceX into the fuel leaks that caused Starship to tumble and then burn up in an uncontrolled manner as it came down in its designated landing zone in the Indian Ocean. From the FAA’s statement:

The FAA is requiring SpaceX to conduct a mishap investigation for the Starship Flight 9 mission that launched on May 27 from Starbase, Texas. All Starship vehicle and Super Heavy booster debris landed within the designated hazard areas. There are no reports of public injury or damage to public property. The mishap investigation is focused only on the loss of the Starship vehicle which did not complete its launch or reentry as planned.

This FAA demand for an investigation is meaningless and not news, because SpaceX doesn’t need the FAA to require it. Does anything think SpaceX wasn’t going to do an investigation without an order from the FAA?

Nor will the FAA’s demand change anything. Once SpaceX completes and submits its investigation, the FAA will approve it immediately. No one at the FAA is qualified to question it. The FAA might participate in that investigation as an outside observer and add some value, but in the end the investigation and subsequent actions are entirely in SpaceX’s hands.

The FAA also admits that even though Starship came back out of orbit in an uncontrolled manner, breaking up over the Indian Ocean, it did so exactly as the mission’s contingency plans intended. No one was hurt. Nothing was damaged on the ground. And all the debris fell within the designated landing zone. From the FAA’s legal perspective, there is nothing to investigate, since its only responsibility is to limit harm to the public. SpaceX did what was requested, most admirably. The FAA admits as much in not requiring a mishap investigation of the Superheavy failure.

That the propaganda press is trying to make a big deal about this is a joke. These press reports are merely more propaganda attempting to pump up the importance of government power while denigrating anything to do with Elon Musk.

Judge rules that SpaceX’s lawsuit against the California Coastal Commission can go forward

A federal judge yesterday ruled that SpaceX’s lawsuit against the California Coastal Commission for its actions attempting to block Falcon 9 launches at Vandenberg because a majority of the commissioners don’t like Elon Musk’s politics can now go forward.

U.S. District Judge Stanley Blumenfeld Jr., a Donald Trump appointee, denied in part California’s request to dismiss the case at a hearing Friday in Los Angeles federal court. In a tentative decision, which wasn’t made publicly available, the judge rejected the state’s argument that four of SpaceX’s claims for declaratory relief weren’t “ripe” because the commission hadn’t enforced a threatened requirement for SpaceX to obtain a coastal development permit for the expanded launch schedule. “The tentative doesn’t find that the evidence is compelling, but that it is sufficient at this stage,” the judge said at the hearing.

This same judge had earlier ruled in favor of the coastal commission, noting that the commission has no real power to limit SpaceX operations at the military base and thus the company could not demonstrate harm. SpaceX amended its complaint to emphasize the harm caused to Musk’s free speech rights, and this was sufficient for the judge to change his ruling in favor of SpaceX.

This ruling doesn’t mean SpaceX and Musk have won. It means the judge considers their case sufficient for it to the lawsuit to proceed.

SpaceX’s complaint stems from an insane October 2024 hearing before the commission, where multiple commissioners came out against a SpaceX request to increase its launches at Vandenberg not because it might harm the environment but because Elon Musk now supported Donald Trump.

Their actions that day were a clear abuse of power for political reasons, and a clear violation of Elon Musk’s right to free speech.

May 30, 2025 Quick space links

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.

  • Another Chinese pseudo-company, Astronstone, raises money, proposes copycat rocket
    More here. As noted at the first link, the design appears to be a steal of the rocket being built by another Chinese pseudo-company, Space Epoch. This is not surprising, as the Chinese government requires its fake companies to share all data with the government and other companies. The only design difference is that Astronstone is stealing SpaceX’s chopstick launch tower design for its rocket’s landing.

Webb spots a new record-setting galaxy, only 280 million years after the Big Bang

MoM Z14
The galaxy MoM z14, as seen in the infrared
by Webb. Click for original image.

The uncertainty of science: Using the Webb Space Telescope, astronomers have now identified a galaxy that formed only 280 million years after the Big Bang, far earlier than their theories of the origins of the universe had predicted.

“The broader story here is that JWST was not expected to find any galaxies this early in the history of the universe, at least not at this stage of the mission,” van Dokkum said. “There are, very roughly, over 100 more relatively bright galaxies in the very early universe than were expected based on pre-JWST observations.”

The data suggests MoM z14 is 50 times smaller than the Milky Way, contains nitrogen and carbon, and appears to be forming stars. The data also found little neutral hydrogen surrounding the galaxy, which also contradicts those same cosmological theories. According to those theories, the early universe should be filled with neutral hydrogen.

The nitrogen and oxygen are also there earlier than expected, and suggest there will be more such galaxies, including some even closer to the Big Bang.

Hat tip BtB’s stringer Jay.

Supreme Court unanimously rules the federal government’s regulatory overuse of environmental impact statements is wrong

In a ruling that will have wide-ranging impacts across multiple industries, including rocketry, the Supreme Court yesterday ruled 8-0 that the mission creep expansion of federal government’s regulatory use of environmental impact statements (EIS) to hinder all new construction projects is incorrect and must stop.

The case involved a planned railroad in Utah, that had gotten all its permits for construction, including approval of its environmental impact statement, but was then stymied by lawsuits by political activist groups that claimed the impact statement, issued under the National Environmental Policy Act (NEPA), had not considered the impact of the industries the railroads would serve, including impacts far from the railroad’s location itself.

This is a perfect example of the broad expansion of NEPA that has been imposed in the last two decades by federal bureaucracy working hand-in-glove with these leftist political groups.

The Supreme Court, including all of the Democratic Party appointees, said enough!

In its majority opinion, authored by Justice Brett Kavanaugh, the Court clarified that under NEPA the STB “did not need to evaluate potential environmental impacts of the separate upstream and downstream projects.” The Court concluded that the “proper judicial approach for NEPA cases is straightforward: Courts should review an agency’s EIS to check that it addresses the environmental effects of the project at hand. The EIS need not address the effects of separate projects.”

This statement “is particularly significant for infrastructure projects, such as pipelines or transmission lines, and should help reduce NEPA’s burdens (at least at the margins),” wrote Jonathan Adler, a law professor at the Case Western Reserve University School of Law, in The Volokh Conspiracy. “The opinion will also likely hamper any future efforts, perhaps by Democratic administrations, to expand or restore more fulsome (and burdensome) NEPA requirements.”

The article notes (and confirms) what I have been writing now for the past five years in connection with the FAA’s demand that rocket companies require new impact statements every time they revise their operations, even when those changes are relatively minor.

This point could reduce one of the largest delays caused by NEPA: litigation. Since its passage in 1969, NEPA has been weaponized by environmental groups to stunt disfavored projects—which has disproportionately impacted clean energy projects. On average, these challenges delay a permitted project’s start time by 4.2 years, according to The Breakthrough Institute.

The increased threat of litigation has forced federal agencies to better cover their bases, leading to longer and more expensive environmental reviews. With courts deferring more to agency decisions, litigation could be settled more quickly.

This ruling is an excellent move in the right direction, but no one should assume it will be followed honestly by the next Democrat who sits in the White House. Just as Biden expanded red tape by simple forcing the FAA to slow-walk its launch licensing process, future presidents could do the same.

Nor should be expect the lawsuits by these luddite leftists to cease. They will find other legal challenges and will push those instead.

The real solution is to reduce the bureaucracy’s size entirely, so there won’t be paper-pushers for these petty dictators to utilize for their authoritarian purposes. Eliminating or simplifying these environmental regulations would help as well, giving the activists fewer handles on which to hang their lawsuits.

SES cleared by the United Kingdom to buy Intelsat

The long-established Luxembour satellite company SES has now gotten regulatory approval from the United Kingdom to buy another long-established satellite company, Intelsat, with the purchase price €2.8 billion.

SES’s €2.8 billion acquisition of Intelsat was cleared by the UK’s competition regulator, in a move that will create a satellite giant to better compete with Elon Musk’s Starlink. The Competition and Markets Authority decided on the basis of “the information currently available to it,” to not subject the deal to an in-depth probe, it said in a statement on Friday.

The deal still needs to be approved by the European Union, which has set June 10th as the deadline for a decision.

This merger is because these older satellite companies are presently losing in competition with the many new low-orbit satellite constellations by new companies, led mostly by Starlink. By merging they hope to compete better.

SpaceX launches GPS satellite for military

SpaceX this morning successfully placed a military GPS satellite into orbit, its Falcon 9 rocket lifting off from Cape Canaveral in Florida.

The first stage completed its fourth flight, landing on a drone ship in the Atlantic. As of posting the satellite has not yet been deployed.

This was the second military GPS launch that the Space Force has taken from ULA and its Vulcan rocket and given to SpaceX instead. Even though Vulcan was certified in late March by the military for these kinds of military launches, delays in getting Vulcan operational forced the Space Force to find another more reliable launch provider. Even now, two months after that certification, ULA has still not announced a launch schedule for this rocket. The company in December 2024 had predicted it would launch 20 times in 2025, with 16 of those launches being by Vulcan. The year is almost half over now and ULA has only launched once, using an Atlas 5 rocket.

The leaders in the 2025 launch race:

66 SpaceX
32 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 66 to 51.

SpaceX: We are targeting 170 launches in 2025

According to a statement by a SpaceX official during a telephone press conference on May 28, 2025, the company is now hoping to complete 170 total launches in 2025.

“We’re targeting 170 launches by the end of the year,” Anne Mason, director of national security space launch at SpaceX, said during a call with reporters on Wednesday (May 28).

…”I always find it amazing that this cadence has become somewhat normal,” Mason added during Wednesday’s call, which served to preview SpaceX’s planned Friday (May 30) launch of the GPS III SV08 satellite for the U.S. Space Force. “But if we look back just five years ago, in 2020 when we launched roughly 25 times, which is still a healthy rate at twice a month, and now launching on average every two to three days — I think this demonstrates how Falcon’s reusability and reliability, plus the hard work and dedication of the SpaceX team, has been critical to supporting assured access to space,” she said.

Last year SpaceX set a record of 137 successful orbital launches, a number that also exceeded what the entire world had accomplished yearly for most of the space age since Sputnik in 1957. This new goal however appears to be a reduction from its earlier hopes. Near the start of the year SpaceX officials had predicted it would complete 180 launches.

There is also the possibility that Mason above was only referring to Falcon 9 and Falcon Heavy launches, and not counting the test flights of Starship and Superheavy.

Either way, SpaceX continues to prove that freedom and private enterprise can do far more than government, and do it faster and cheaper as well.

NASA unwittingly reveals its bankruptcy by its reliance on AI

Uranus as seen by Hubble in 2014 and 2022
Click for original image.

In what appeared to be a totally inexplicable press release today, NASA posted the two pictures of Uranus to the right. The accompanying text was truly puzzling, describing in a somewhat brainless and inaccurate manner what is in the pictures;

Two views of the planet Uranus appear side-by-side for comparison. At the top, left corner of the left image is a two-line label. The top line reads Uranus November 9, 2014. The bottoms line reads HST WFC3/UVIS. At the top, left corner of the right image is the label November 9, 2022. At the left, bottom corner of each image is a small, horizontal, white line. In both panels, over this line is the value 25,400 miles. Below the line is the value 40,800 kilometers. At the top, right corner of the right image are three, colored labels representing the color filters used to make these pictures. Located on three separate lines, these are F467M in blue, F547M in green, and F485M in red. On the bottom, right corner of the right image are compass arrows showing north toward the top and east toward the left. [emphasis mine]

First, the description doesn’t match the pictures precisely, as if whoever wrote it wasn’t looking at these pictures. Second, the description is ridiculously literal, and really provides no information at all. (Consider for example the highlighted sentence. All it is doing is describing a standard scale bar, in the strangest most stupid manner possible.)

I immediately surmised that someone at NASA has decided to use AI to do this work, and AI (in its typical stupid brilliance) provided this worthless text. The unnamed NASA employee — equally as stupid — then posted it without reading it, assuming AI had done his or her job perfectly.

What makes this display of stupidity even worse is that these pictures, and a real press release, were issued back in 2023, when I posted these pictures initially. Does no one at NASA ever bother to read their own press releases?

Apparently not. The advent of AI has now produced human employees at the space agency who read nothing, know nothing, and do nothing. They instead plug stuff into AI and pump it out to the public mindlessly.

No wonder Trump wants to slash NASA’s budget. We certainly ain’t getting our money’s worth from the people that are there.

I also fully expect NASA management to soon deep-six this press release, or to fix it quickly once they read this post.

Northrop Grumman invests $50 million in Firefly and new rocket

Northrop Grumman and the rocket startup Firefly announced yesterday that the former has invested $50 million in the latter in order to develop a fully new rocket, dubbed Eclipse, with capabilities allowing it to compete with SpaceX for customers.

“Firefly is incredibly grateful for Northrop Grumman’s investment that further solidifies our first-of-its-kind partnership to build the first stage of Antares 330 and jointly develop Eclipse,” said Jason Kim, CEO of Firefly Aerospace. “…With a 16 metric ton to orbit capability, Eclipse is a sweet spot for programs like NSSL Lane 1 and a natural fit to launch proliferated constellations in LEO, MEO, GEO, and TLI.”

Built upon Northrop Grumman’s Antares and Firefly’s Alpha rocket, Eclipse offers a significant leap in power, performance, production cadence, and payload capacity. The launch vehicle retains the flight-proven avionics from the Antares program with additional upgrades, including a larger 5.4 meter payload fairing. Eclipse also utilizes the same first stage Firefly is developing for Antares 330 and retains scaled-up versions of Alpha’s propulsion systems and carbon composite structures, allowing the team to rapidly build and test Eclipse with significant production efficiencies and economies of scale.

The companies say that because of its reliance on already proven launch rockets, they hope Eclipse’s first launch will take place in 2026 from Wallops Island.

As I noted yesterday, the demand for launch services — especially for heavier payloads — presently exceeds the supply, as already established rocket companies ULA and Blue Origin have so far failed to deliver as promised. Rocket Lab is developing its medium-lift Neutron expressly to grab this market. It now appears Northrop Grumman wants a share as well, and is partnering with Firefly to get it.

If all goes as planned this partnership will soon have two rockets to offer customers, the Antares 330 and Eclipse.

May 29, 2025 Quick space links

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.

Elon Musk’s presentation “The Road to Making Life Multiplanetary”

The Musk game plan for Mars exploration over the next few years
The Musk game plan for Mars exploration over the next few years.

It appears Elon Musk finally gave his public presentation to SpaceX employees today, entitled “The Road to Making Life Multiplanetary”, and had it posted on X.

I have embedded that presentation below.

After reviewing the present development program for Starship/Superheavy (without mentioning anything about this week’s flight), Musk then outlined the game plan for the the next few years, as shown in the graphic above. If all goes as planned (not to be expected), the first Starships will head to Mars in about eighteen months, at the next launch window near the end of 2026. These flights will be unmanned, and will require that by then SpaceX will have also developed orbital refueling capability.

Musk hopes the first manned missions will take place at the next launch window in 2028-29, with the number of ships increased from 5 to 20. Later windows will see 300 and then 500 ships launched. For those flights a lot of work will need to be done to make Starships function as interplanetary spaceships, something it appears SpaceX and Musk have not yet devoted much energy to.

As always, Musk’s target goals are ambitious and not likely to be met. But as always, his targets are not unreasonable, which means SpaceX will likely eventually get all this done but late by only one or several launch windows.

Musk also noted that this entire program is presently being funded by Starlink revenues. The government for SpaceX and Musk’s space exploration plans is largely now irrelevant. This fact is possibly the most historically significant revelation in his presentation.

I strongly recommend you watch his whole speech, if only to enjoy the “Wow!” factor.

The future is going to be exciting for sure.

Hat tip to reader Gary.
» Read more

Just as I refuse to say “native American”, I refuse to say “Gulf of America”

A British map from 1700, with the Gulf of Mexico labeled at
A British map from 1700, with the Gulf of Mexico
labeled at “The Great Bay of Mexico”

The recent effort by Donald Trump to get the name of the Gulf of Mexico changed to the “Gulf of America” appears at first glance to have many laudable aspects, the most important of which his desire to energize the American people to have pride in their country. For too long young Americans have been indoctrinated with the anti-American Marxist poison pushed by our modern bankrupt academic community, and have thus been trained to think timidly and with hate about their own country.

Advocating this name change is Trump’s way of quickly countering that negativity. The United States is founded on noble principles — “life, liberty, and the pursuit of happiness” — and it has lived up to those ideals with remarkable success during its entire 250 year history. Thus, Americans have plenty to be proud of, and to Trump’s mind something needed to be done to underline that fact.

Hence, his push to change the “Gulf of Mexico” to the “Gulf of America.”

And yet, as much as I support his general effort to invigorate Americans to their glorious past, to my mind this particular effort by Trump is as false and as shallow as the left’s never-ending demands that we use new language for everything. American Indians should be “native Americans”, even though everyone born in the U.S. is native. “Chairman” must become “Chair” or “Chairperson,” even though such usage is ugly and unnecessary. Spaceflight can never be “manned,” football teams can’t be “Redskins,” and “communists” must now be called “progressives.”

And worst of all we must all use the pronouns demanded by perverts, even if when by doing so we are denying reality.

Such abuse of language offends me, as a writer. » Read more

Chinese pseudo-company completes successful hop test of rocket

YXZ-1 completing soft splashdown vertically
YXZ-1 completing soft splashdown vertically.
Click for movie.

The Chinese pseudo-company Space Epoch (also called SEpoch) announced today a successfully hop test yesterday where its prototype YXZ-1 grasshopper-type test prototype completed a vertical launch to an altitude of about 1.5 miles, shut down its engines, then relit them to achieve a soft splashdown over water.

The test article used thin-walled stainless steel and had a diameter of 4.2 meters, a total height of 26.8 meters and a takeoff mass of about 57 tons, according to Space Epoch. The test lasted 125 seconds and reached around 2.5 kilometers in altitude. The test article used Longyun methane-liquid oxygen engines provided by [pseudo]-commercial firm Jiuzhou Yunjian (JZYJ).

Sepoch says the test has laid a solid foundation for the first full flight of the YXZ-1, also known as Hiker-1 in English, later this year.

Without question China’s pseudo-companies as well as its official state space divisions are aggressively pursuing reusable rockets, far more aggressively than any companies (other than SpaceX) in the west. There are at least nine Chinese pseudo-companies or government agencies testing rockets that can land vertically (Space Epoch, Landspace, Deep Blue, Shanghai Academy of Spaceflight Technology, Chinese Academy of Sciences, Space Pioneer, Ispace, Galactic Energy, Linkspace), with eight having attempted hop tests with mixed results.

In the west, only SpaceX is flying reusable rockets. Blue Origin’s New Glenn is supposed to be reusable, but it has only launched once and on that flight its first stage failed to land successfully. The company has only done hop flights with its small suborbital New Shepard spacecraft. Rocket Lab is building its reusable Neutron rocket, but it also has never done any hop tests with that rocket. Stoke Space plans a completely reusable rocket, with the second stage returning as well, and has done one short hop test of a prototype of that stage. Other rocket companies are designing or developing such rockets, but none have done any hop tests.

In general China’s rocket industry appears far ahead in this race.

Hat tip to BtB’s stringer Jay.

Scientists believe they have detected the actual process in which Mars loses its atmosphere

The uncertainty of science: Scientists using three different instruments on the Mars orbiter MAVEN now believe they have detected evidence of the actual process in which Mars loses its atmosphere, dubbed “sputtering”.

To observe sputtering, the team needed simultaneous measurements in the right place at the right time from three instruments aboard the MAVEN spacecraft: the Solar Wind Ion Analyzer, the Magnetometer, and the Neutral Gas and Ion Mass Spectrometer. Additionally, the team needed measurements across the dayside and the nightside of the planet at low altitudes, which takes years to observe.

The combination of data from these instruments allowed scientists to make a new kind of map of sputtered argon in relation to the solar wind. This map revealed the presence of argon at high altitudes in the exact locations that the energetic particles crashed into the atmosphere and splashed out argon, showing sputtering in real time. The researchers also found that this process is happening at a rate four times higher than previously predicted and that this rate increases during solar storms.

This sputtering is believed to be the process in which Mars lost the thick atmosphere that scientists believe must have existed in the past so that liquid water could exist on the planet’s surface. When MAVEN arrived in Mars orbit ten years ago the scientists actually thought the spacecraft would detect it relatively quickly. That it took ten years to finally find some evidence it is occurring suggests something is not quite right with their theories.

China launches classified satellite

China today successfully launched a classified Earth observation satellite to do “national land surveys, environmental management and other fields,” its Long March 4B rocket lifting off from its Jiuquan spaceport in northwest China.

No word on where the rocket’s lower stages, which use very toxic hypergolic fuels, crashed inside China.

The leaders in the 2025 launch race:

65 SpaceX
32 China
6 Rocket Lab
6 Russia

SpaceX still leads the rest of the world in successful launches, 65 to 51.

South Korea rocket startup launches small prototype rocket

Unastella rocket at launch
Unastella rocket at launch

A South Korea rocket startup dubbed Unastella on May 28, 2025 successfully launched a small prototype suborbital rocket from its own launch site near the country’s southern coast.

UNA EXPRESS-I is 9.45 meters long and has a total weight of 2 tons. It is a small launch vehicle that uses kerosene (jet fuel) and liquid oxygen as fuel, with a thrust of 5 tons. The vehicle successfully completed its flight to the target distance of 10 kilometers and fell into the maritime safety zone set by Goheung County, the company stated. Park Jae-hong, the CEO of Unastella, noted, “For the first launch, we lowered the altitude for safety and extended the reach.”

This is South Korea’s second rocket startup that has launched a small test prototype, the first being Innospace which launched its test rocket from Brazil in 2023 and hopes to do an orbital launch before the end of the year.

It appears that South Korea is shifting successfully to the capitalism model. Back in 2023 it was trying to develop its government-built Nuri rocket, but that development seems to have stalled. Since then its newly formed space agency has established policies encouraging private space commercialization, which has apparently resulted in these two new rocket companies.

New data suggests Europa’s surface is constantly changing

Webb data showing variations on Europa's surface
Click for original graphic.

The uncertainty of science: Using data collected by the Webb Space Telescope combined with modeling and lab experiments, scientists now think they have found evidence that Europa’s surface is constantly changing, with materials from its interior being brought to the surface.

This new study found crystalline ice on the surface as well as at depth in some areas on Europa, especially an area known as Tara Regio. “We think that the surface is fairly porous and warm enough in some areas to allow the ice to recrystallize rapidly,” said Dr. Richard Cartwright, lead author of the paper and a spectroscopist at Johns Hopkins University’s Applied Physics Laboratory. “Also, in this same region, generally referred to as a chaos region, we see a lot of other unusual things, including the best evidence for sodium chloride, like table salt, probably originating from its interior ocean. We also see some of the strongest evidence for CO2 and hydrogen peroxide on Europa.”

…“Our data showed strong indications that what we are seeing must be sourced from the interior, perhaps from a subsurface ocean nearly 20 miles (30 kilometers) beneath Europa’s thick icy shell,” said [Dr. Ujjwal Raut of the Southwest Research Institute and co-author of the paper]. “This region of fractured surface materials could point to geologic processes pushing subsurface materials up from below. When we see evidence of CO2 at the surface, we think it must have come from an ocean below the surface.”

The graphic to the right shows the detected variations across the surface of Europa, based on the Webb spectroscopic data. It also illustrates nicely the coarseness of this data, its lack of resolution, and the uncertainties involved. The scientists have found evidence that suggests the surface is changing, but the key word here is “suggests”. They have not yet directly seen any actual changes, such as changes between two images taken at different times.

Nonetheless, the data does point in the right direction. Moreover, it would be far more unlikely if nothing on Europa changed. The fundamental question that remains unanswered is how fast things change there. And we won’t have any chance to answer this question until Europa Clipper enters Jupiter orbit in 2030 and begins multiply fly-bys of Europa.

Katica Illényi – Bubamara

An evening pause: Performed live 2016. It ain’t some long-haired guy twiddling on a bass guitar, but her fingers as a nimble and as creative.

Hat tip Judd Clark.

To all: I am in need of more evening pause suggestions. If you have suggested before, you know the rules and the way to do it. Please send me stuff. If you haven’t suggested anything previously and have something you think would work, say so in a comment here — but don’t tell us what your suggestion is. I will email you to get it. The guidelines:

1. The subject line should say “evening pause.”
2. Please send only one suggestion per email.
3. Variety! Don’t send me five from the same artist. I can only use one. Pick your favorite and send that.
4. Live performance preferred.
5. Quirky technology, humor, and short entertaining films also work.
6. Suggestions should generally be short, less than 10 minutes, preferable under 5 minutes
7. Search BtB first to make sure your suggestion hasn’t already been posted.
8. I might not respond immediately, as I schedule these in a bunch.
9. Avoid the politics of the day. The pause is a break from such discussion.

May 28, 2025 Quick space links

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.

A positive endgame in Gaza begins to loom

Israel food products, provided directly to Gazans
Israel food products, provided directly to Gazans.
Click for video.

Several news stories in the past few weeks suggest to me that we are beginning to see the first signs of the end game that will bring about the defeat of Hamas and the establishment of a sane society within the Gaza strip.

First, it appears that Hamas is short of cash, according to a news report from a Saudi newspaper and then re-reported by an Israeli news outlet.

Sources within the terror group revealed that Hamas is struggling to pay salaries — not only to government employees, but also to members of its military wing and staff in other affiliated bodies at all levels.

The sources added that the Izz ad-Din al-Qassam Brigades, Hamas’ military wing, have not paid salaries to terrorists for approximately three months and are facing serious financial difficulties in acquiring essential equipment for their military operations.

One of the things that has propped Hamas up for decades has been its control of foreign aid. The money comes in and Hamas doles it out while keeping large portions for its own use. The distribution of money gives Hamas leverage, while the money it keeps reinforces its power. Under Trump that foreign aid spigot has been largely shut down, and this story suggests we are now seeing the first results of this policy.

Second, Israel is now taking over the direct distribution of humanitarian aid. In the past Hamas maintained its power over its citizens by acting as the go-between of food and medicine. Nothing would go to anyone unless Hamas got its dirty hands on it first. Often no aid at all would reach Gazans. Hamas would keep it all, shipping it underground to its tunnels for use later during siege. Or it would sell that aid on the black market, raising money to fund its terrorist operations.

Israel, in partnership with the United States, is now ending that vile practice.
» Read more

China launches its first asteroid sample return mission

China today successfully launched Tianwen-2, its first mission attempting to return a sample from a near Earth asteroid, its Long March 3B rocket lifting off from its Xichang spaceport in southwest China.

Video of the launch can be found here. The probe will take about a year to reach asteroid Kamo’oalewa, where it will fly in formation studying it for another year, during which time it will attempt to grab samples by two methods. One method is a copy of the touch-and-go technique used by OSIRIS-REx on Bennu. The second method, dubbed “anchor and attach,” is untried, and involves using four robot arms, each with their own drill.

Some data suggests Kamo’oalewa is possibly a fragment from the Moon, but that is not confirmed.

After a year studying Kamo-oalewa, Tienwen-2 will then return past the Earth where it will release its sample capsule. The spacecraft will then travel to Comet 311P/PANSTARRS, reaching it in 2034. This comet is puzzling because it has an asteroid-like orbit but exhibits activity similar to a comet.

As for the launch, there is no word where the Long March 3B’s lower stages and four strap-on boosters, all using very toxic hypergolic fuels, crashed inside China. It should be noted that the video I link to above was taken by an ordinary citizen watching from a hill nearby, bringing with him a group of children as well. Considering the nature of the rocket’s fuel (which can dissolve your skin if it touches you), China’s attitude is remarkably sanguine to not only drop these stages on its people, but to allow tourists to get so close to launches.

The leaders in the 2025 launch race:

65 SpaceX
31 China (with one more launch scheduled later today)
6 Rocket Lab (with one launch scheduled for today SCRUBBED)
6 Russia

SpaceX now leads the rest of the world in successful launches, 65 to 50.

The canyon that Curiosity will eventually climb

The canyon that Curiosity will eventually climb
Click for full resolution. For original images go here and here.

Overview map
Click for interactive map.

Cool image time! The panorama above, created from two photographs taken on May 23, 2025 by the left navigation camera (here and here) on the Mars rover Curiosity, looks south uphill into the canyon that Curiosity is eventually going to climb.

The overview map to the right provides the context. The blue dot marks Curiosity’s present position, the white dotted line its past travels, the red dotted line its initial planned route, and the green dotted line its future route. The yellow lines indicate the approximate area seen in the panorama above.

If you look on the horizon to the left, you can see very bright terrain higher up the mountain. This is the pure sulfate-bearing unit that is Curiosity’s next major geological goal. It won’t reach that terrain for quite some time however because first the scientists want to spend some time studying the boxwork geology that Curiosity is now approaching. That boxwork suggests two past geological processes, as yet unconfirmed. First it suggests the ground dried like mud, forming a polygon pattern of cracks that then hardened into rock. Second, lava seeped up from below and filled those cracks. The lava, being more resistant to erosion, ended up becoming the boxwork of ridges as the material around eroded away.

This proposed history however is not proven. They hope to find out when Curiosity gets there.

Meanwhile, despite having traveled almost 22 miles, the rover is more than 25 miles from the peak of Mount Sharp, which remains out of sight. That peak is also about 15,000 feet higher.

1 2 3 1,099