Category: Points of Information

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

NASA delays Axiom manned mission again

9:11 am

Without providing any specific details, NASA today announced that it has once again scrubbed the June 22, 2025 launch of Axiom’s Ax-4 manned mission to ISS as it assesses the Russian repairs to the air leaks in the Russian Zvezda module.

The space agency needs additional time to continue evaluating International Space Station operations after recent repair work in the aft (back) most segment of the orbital laboratory’s Zvezda service module. Because of the space station’s interconnected and interdependent systems, NASA wants to ensure the station is ready for additional crew members, and the agency is taking the time necessary to review data.

No new launch date has been set. Because the agency provides so little specific information, we don’t know if the air leak repairs are working, are failing, or have indicated even more serious problems that make any station docking a greater risk. Almost certainly, this latter fear is unfounded and the repairs have succeeded in stopping or slowing the loss of air, but the paucity of information from NASA allows for wild speculations. It would be better if the agency told us what it has so far learned, and exactly why that knowledge requires it to extend the data-gathering time period.

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June 19, 2025 Quick space links

5:38 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.

This is also late today because my IP, Centurylink, went down in the Tucson area for about three hours. As is usual for this crap company, their customer service line was down also, stupidly telling me to go to their webpage to get service, even though I was calling because I had no service. Idiots.

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Ground-based imagery now suggests China has completed a docking and undocking of two robotic servicing satellites

10:28 am

According to ground-based imagery by the commercial company S2A, China’s Shijian-21 and Shijian-25 robotic servicing satellites appear to have completed a docking and undocking on June 13 and June 14, 2025.

China’s Shijian-21 and Shijian-25 satellites had been moving toward each other in geosynchronous orbit, around 22,236 miles (35,786 kilometers) above the equator, Spacenews reported on June 6. And now the pair appear to have had a brief first encounter, according to observations from the ground.

Optical tracking by the space situational awareness firm s2a systems shows a close approach between the two on June 14, with the pair, at times, virtually unresolvable from the other. This suggests that Shijian-21 and Shijian-25 made at least a test-run close approach and may have even performed a docking and undocking test.

You can see video of the first apparent docking here.

Shijian-21 was launched in 2021, and was used to grab a defunct Chinese geosynchronous satellite and tug it to a graveyard orbit. Shijian-25 was launched in January 2025 to test robotic servicing of satellites. These maneuvers with Shijian-21 appear to be part of those tests.

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Monaco-based startup unveils its proposed European-built lunar rover

10:17 am

Capitalism in space: The Monaco-based startup Venturi Space, this week unveiled its own proposed European-built lunar rover, dubbed Mona Luna. and offered it to both the European Space Agency (ESA) and France’s CNES space agency.

Venturi has received some support from ESA for key technologies needed for the rover. The company is hoping to win support for a rover development project at ESA’s ministerial conference in late November, when member states will decide on funding for agency programs for the next three years. Antonio Delfino, Venturi’s director of space affairs] argued a rover like Mona Luna fit a gap in Europe’s exploration plans. Mona Lisa is designed to be delivered to the lunar surface on ESA’s Argonaut lander, which would launch on an Ariane 64.

The company has said it is willing to commit some of its own investment capital to develop the rover, should either ESA or CNES decide to buy it. Whether ESA or CNES agree to build this rover however will likely depend on whether either has a program to land on the Moon. At the moment the status of NASA’s Artemis program is unclear, and it was that program that Europe was relying on to get to the Moon.

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Starlink begins or expands service in three more countries

10:07 am

Starlink this week officially began service in both India and the African country of Guinea-Bissau, while expanding its service in the Ukraine to include phone-to-satellite texting.

In India the final licensing approval came through, and the service is now available to customers through two different Indian telecommunication platforms.

The deals consists of selling Starlink’s equipment through Jio and Airtel’s retail networks, while Jio will also offer customer service, installation, and activation support. It will emphasise on providing high-speed internet to businesses, healthcare centres, schools and remote communities across India, according to reports.

SpaceX also begain to offer its services in Guinea-Bissau, a former Portuguese colony located on Africa’s northwestern coast and the seventh African country to approve Starlink. Its license had been approved in April, but the service wasn’t available apparently until now.

Finally, regulators in the Ukraine have now approved the use of Starlink’s phone-to-satellite service by the Ukrainian telecommunications company Kyivstar. The program will at present be limited to texting and emergency alerts. This expands Starlink’s already extensive internet availability there.

In every case, Starlink will act to decentralize control of communications aware from the government, as its sells terminals to ordinary citizens.

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Russia launches classified military satellite using its Angara-5 rocket

9:50 am

Russia today successfully launched a classified military satellite, its Angara-5 rocket rocket lifting off from its Plesetsk spaceport in northeastern Russia.

This was the fifth flight of the Angara-5 rocket, the most powerful version in the Angara family of rockets that Russia first proposed three decades ago to replace its older rockets and has had an extremely slow development history. Its core stage and four strap-on boosters crashed in drop-zones across Russia,

On June 9, 2025, the administration of the Kolpashevo District in the Tomsk Region of Russia declared several communities at risk of debris impact during an Angara-5 launch scheduled around 06:00 Moscow Time on June 19, 2025. The danger area covered the Verkneketsky, Kolpashevsky, Kargasoksky and Parabelsky Districts and was located around 65 kilometers north-west of Lake Tresh. This particular area, located around 2,320 kilometers downrange from Plesetsk, would normally be used as a drop zone for the second stage of an Angara rocket heading to an orbit with an inclination 63.4 degrees toward the Equator.

The rocket’s first stage boosters were expected to fall in the Komi Republic around 850 kilometers downrange, while the third stage would splash down in the Pacific Ocean, east of the Philippines, where the Russian authorities also declared a danger zone.

The leaders in the 2025 launch race:

76 SpaceX
34 China
8 Rocket Lab
7 Russia

SpaceX still leads the rest of the world in successful launches, 76 to 56.

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Major explosion during preparations for static fire test of Starship prototype

11:14 pm

The moment the explosion begins on this Starship prototype<

As engineers tonight were preparing for a standard static fire engine test at Boca Chica of the next Starship prototype, expected to fly on the tenth Starship/Superheavy test flight, the spacecraft suddenly exploded.

I have embedded video of the explosion below. The event occurred prior to the actual static fire test, while Starship’s tanks were being filled. The image to the right is a screen capture just as the explosion begins. The white cloud is the initial release from the explosion (not standard venting), with the red dot indicating the location where the event began. It appears very much to have started inside this Starship spacecraft, which SpaceX was preparing for the next test flight.

Fortunately, no injuries have been reported.

Obviously, this is going to delay somewhat that tenth test flight. SpaceX has more Starship prototypes ready to go, but the company must first figure out what went wrong in this case. It also appears there might be some damage to that test stand, which will also have to be rebuilt so that future static fire tests of upcoming Starships can take place.
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June 18, 2025 Quick space links

3:06 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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France’s space agency agrees to let Spanish rocket startup PLD establish its own launch site at French Guiana

12:38 pm

Though France’s space agency CNES had initially attempted to place many rules and restrictions on the commercial operations of new independent private rocket companies at its spaceport in French Guiana, it has now backed off those demands in agreeing to let the Spanish rocket startup PLD establish its own launch site there at the decommissioned launchpad used by France’s Diament rocket in the 1970s.

This new contract greenlights the implementation of the infrastructure project designed by PLD Space with technical support from CNES and grants legal use of land in the ELM-Diamant area, where the MIURA 5 Preparation Zone and Launch Zone will be located. Construction will begin with the start of the dry season in French Guiana, expected in the summer months of 2025.

In September 2024 CNES said it wished to standardize the launch site for the seven different European rocket startups (Avio, HyImpulse, Isar Aerospace, MaiaSpace, PLD Space, Rocket Factory Augsburg, and Latitude) it had approved to use it. At the time I sensed there was opposition from these companies to this policy, since each rocket was different and would not function with this standardized design.

At a minimum that policy apparently delayed PLD’s plans, as it originally hoped to start its launchpad construction in October 2024 and launch in 2025. That schedule went by the wayside.

It now appears PLD will proceed with development as it wishes, for its rocket, and the others will have to figure out how fit their rockets to that design. Or maybe CNES is going to open up further sites at French Guiana to avoid this conflict.

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A blacklisted American wins in court

12:16 pm

Bruce Gilley of Portland State University, willing to fight
Bruce Gilley, formerly of Portland State University

Back in 2017 political science professor Bruce Gilley wrote a quite reasonable historical paper in the academic journal Third World Quarterly that took a look at the colonialism of the western nations in 1800s and concluded that this colonialism had not been all bad, and in fact had brought “significant social, economic and political gains” to the nations colonized.

For this sin of honest academic analysis (certainly open to debate), the academic community put together a coordinated international campaign to get his paper withdrawn and his reputation ruined. He received death threats, and later in response to these threats and this campaign — including the resignation of fifteen of its board members — the journal withdrew Gilley’s paper. It didn’t do so because of any academic flaws in the work, only because it dared state conclusions that today’s leftist, Marxist, and very bigoted academic community cannot tolerate.

Soon thereafter Gilley found himself blacklisted and censored at his university, Portland State University in Oregon. The communication manager for its Division of Equity and Inclusion, Tova Stabin, blocked him from a college X discussion group because Gilley had had the nerve in one email to quote Thomas Jefferson, noting that “all men are created equal.”
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Astronomers claim radio data detects much of the universe’s “missing mass”

10:55 am

The uncertainty of science: Using radio data from 60 fast radio bursts scattered across the sky, astronomers think they have detected the signature of much of the universe’s “missing mass” that has until now been ascribed to some unknown material dubbed dark matter but in fact is mostly ordinary matter that was previously unobserved.

The results show that about 76% of baryonic matter is in the intergalactic medium, 15% is in the halos around galaxies and the rest is inside stars or cold galactic gas.

From the paper’s abstract:

Approximately half of the Universe’s dark matter resides in collapsed halos; significantly less than half of the baryonic matter (protons and neutrons) remains confined to halos. A small fraction of baryons are in stars and the interstellar medium within galaxies. The majority are diffuse (<10−3 cm−3) and ionized (neutral fraction <10−4), located in the intergalactic medium (IGM) and in the halos of galaxy clusters, groups and galaxies.

In other words, the dark matter is simply ordinary matter made up of ionized “diffuse ionized gas” that ” is notoriously difficult to measure.”

One major uncertainty of this result is its dependence on fast radio bursts. The scientists claim the sixty bursts they used came from distances ranging from 12 million to 9 billion light years, but it is unclear how they determined those distances. We do not currently know the source of fast radio bursts, which means we also do not really know exactly where they occur or how distant they are from us. This research however relies on that uncertain knowledge, because it measures the changes to each burst’s radio emissions as it travels through intergalactic space.

Nonetheless, if confirmed this result shouldn’t surprise us. The universe is gigantic and mostly hard to observe. For there to be a gigantic amount of undetected ordinary matter scattered between the galaxies is perfectly reasonable. Inventing something extraordinary — dark matter — is actually a far more unreasonable scientific strategy.

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