Category: Points of Information

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

February 27, 2026 Quick space links

2:46 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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Mars’ fast moving gigantic lava floods

2:23 pm

A Martian crater broken by flowing lava
Click for original image.

Cool image time! The picture to the right, rotated, cropped, and reduced to post here, was taken on December 12, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labels this a “crater interrupted by flow.” And what a flow! This unnamed 1.4-mile wide crater was not only filled and partly buried by the flow, that flow was so strong it cut through the crater’s rim at two points, refusing to let that rim block it in any way.

The flow in this case is lava, coming down from the Tharsis Bulge where four of Mars’ biggest volcanoes arose. And that flow was quite vast, as the nearest of those volcanoes, Arsia Mons, is almost 800 miles away. Because of Mars’ relative light gravity, about 39% that of Earth’s, lava on Mars can flow across large distances in a very short time. It might have only taken a few weeks for that flow to cover that 800 miles.
» Read more

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Early notes of Galileo discovered in margins of Ptolemy’s most famous book

11:20 am

A researcher reviewing the text of a 16th century printing of Claudius Ptolemy’s most famous book, The Almagest (in which he outlined his theory that the Earth stood at the center of the universe), was astonished this January to discover previously unidentified notes in the handwriting of Galileo in the book’s margins.

As [historian Ivan Malara flipped through the pages, he spotted something out of place. Someone had transcribed Psalm 145 on an otherwise blank page—in handwriting reminiscent of a very, very famous Tuscan astronomer.

That book, Malara came to realize, had been extensively annotated by none other than Galileo Galilei. Malara’s discovery, described in a paper now under review at the Journal for the History of Astronomy, promises new insights into one of the most famous ideological transitions in the history of science: the moment when Earth was thrust from the center of our universe.

The article at the link tries to makes the absurd and false claim that “many historians’ typical portrayal of Galileo as being motivated by philosophy or even political savvy, not careful math. ‘He has been presented as a big-picture sort of guy—not interested in the nitty-gritty technical details of astronomy,’ says James Evans, a historian of astronomy at the University of Puget Sound.” The article does this to suggest these newly discovered notes will profoundly change that interpretation.

That interpretation is wrong however. Anyone who has read any histories or biographies of Galileo (as I have) knows this portrayal is false. It is very clear from all his work that Galileo was very evidence-based, focused on the data and facts — the nitty-gritty technical details — to determine the larger picture. And these newly discovered notes confirm this:

Galileo’s notes, perhaps written around 1590, or roughly 2 decades before his groundbreaking telescope observations of the Moon and Jupiter, reveal someone who both revered and critically dissected Ptolemy’s work. And they imply, Malara argues, that Galileo ultimately broke with Ptolemy’s cosmos because his mastery of the traditional paradigm’s reasoning convinced him that a heliocentric system would better fulfill Ptolemy’s own mathematical logic.

Fascinating stuff. I can’t wait to read the final paper.

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Japanese rocket startup Space One to attempt third orbital launch this weekend

10:39 am

Japanese spaceports
Japanese spaceports indicated by red dots

UPDATE: Launch scrubbed due to weather. No new launch date as yet been announced.

The Japanese rocket startup Space One has now scheduled the third launch attempt of its Kairos rocket for this coming Sunday, March 1, 2026, lifting off from its private Spaceport Kii launchpad.

Space One said Friday that it would launch the No. 3 unit of its Kairos small rocket carrying artificial satellites on Sunday morning. The Tokyo-based space development startup canceled the initially scheduled launch on Wednesday, citing a forecast for unfavorable weather conditions.

According to Space One, the Kairos No. 3 unit is set to lift off from the company’s Spaceport Kii launch site in the town of Kushimoto, Wakayama Prefecture, between around 11 a.m. and 11:20 a.m. on Sunday. The rocket will carry five satellites, including one developed by the Taiwan Space Agency.

The two previous launch attempts, in March and December 2024, both failed almost immediately after launch.

A success now by this private company is crucial for Japan, as its government-owned H3 and Epsilon rockets are both grounded due to launch failures.

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China outlines plans for manned space program

10:26 am

China’s state-run press today outlined a short update on the status of its manned space station program as well as its planned manned lunar landing, still targeting a 2030 launch.

For the space station, these are its upcoming plans:

China is scheduled to launch two crewed missions and one cargo spacecraft mission for its space station operation in 2026, according to the China Manned Space Agency (CMSA). An astronaut from the Hong Kong or Macao special administrative region is expected to carry out a space station flight mission as early as this year, the CMSA noted.

One astronaut from the Shenzhou-23 crew will conduct a year-long in-orbit stay experiment, the CMSA said.

I am willing to bet that China is planning an even longer station mission that will break Valeri Polyakov’s 14.5 month record mission, set in the 1990s on Mir.

As for China’s lunar landing plans, nothing new was announced:

China is targeting a crewed lunar landing by 2030. The development of major flight products, including the Long March-10 carrier rocket, the Mengzhou crewed spacecraft, and the Lanyue lunar lander, is proceeding smoothly. Key tests have been completed, including the zero-height abort test for the Mengzhou spacecraft, the landing and takeoff test for the Lanyue lunar lander, the static fire test and the low-altitude demonstration and validation test for the Long March-10 rocket system, and the maximum dynamic pressure escape test for the Mengzhou spacecraft system.

In 2026, the country will intensify efforts to advance the construction of supporting facilities and equipment for the lunar mission at the Wenchang Spacecraft Launch Site in southern Hainan Province, as well as the development of ground support systems.

China has not yet outlined a program of missions leading up to that lunar landing. Like Apollo and now Artemis, it makes sense to do low orbit rendezvous and docking tests of these various spacecraft before heading to the Moon. It also makes sense to do these same tests first in lunar orbit, before landing. Expect China to announce such a program soon, for launch in the 2027-2029 timeframe.

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Europe’s Jupiter probe Juice releases its first image of interstellar comet 3I/Atlas

9:18 am

Comet 3I/Atlas as seen by Juice
Click for original image.

The European Space Agency’s (ESA) probe Juice, presently on its way to Jupiter, yesterday released its first image of interstellar comet 3I/Atlas from the data it gathered in November 2025 but only now has been able to send back to Earth.

That picture is to the right, cropped and reduced to post here. From the press release:

[T]he science camera on ESA’s Jupiter Icy Moons Explorer (Juice) shows interstellar comet 3I/ATLAS spewing dust and gas. The tiny nucleus of the comet (not visible) is surrounded by a bright halo of gas known as the coma. A long tail stretches away from the comet, and we see hints of rays, jets, streams and filaments. The inset in the image shows the same data, but processed to highlight the coma structure.

As also noted in the release, though this comet is from outside our solar system, “its behaviour is completely in line with that expected from a ‘normal’ comet.”

The picture was taken on November 6, 2025, just seven days after the comet made its closest pass to the Sun. At that time Juice took 120 images, which could not be sent back until now because the Sun was in the way. The science team is presently analyzing that data, and plans a full release of its work next month.

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SpaceX launches 29 Starlink satellites; another booster reaches thirty flights

9:01 am

SpaceX early this morning successfully launched another 29 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral Space Force Station in Florida.

The first stage (B1069) completed its 30th flight, landing on a drone ship in the Atlantic. With this flight, B1069 becomes the fourth SpaceX first stage to fly thirty times:

39 Discovery space shuttle
33 Atlantis space shuttle
33 Falcon 9 booster B1067
31 Falcon 9 booster B1071
31 Falcon 9 booster B1063
30 Falcon 9 booster B1069
28 Columbia space shuttle

Sources here and here.

The 2026 launch race:

25 SpaceX
8 China
2 Rocket Lab
2 Russia
1 ULA
1 Europe (Arianespace)

As it did in both ’24 and ’25, SpaceX in ’26 so far has more launches than the entire rest of the world combined.

Rocket Lab’s suborbital launch from two days ago had been scrubbed due to weather, and is now scheduled for later today, lifting off from Wallops Island in Virginia and carrying an Australian hypersonic test vehicle. This won’t count in the totals above, but I will report the results after launch.

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February 26, 2026 Quick space links

2:46 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.

9 comments

NASA’s corrupt Aerospace Safety Advisory Panel: NASA must be bigger and have more control!

11:36 am

Orion's damaged heat shield
Orion’s damaged heat shield after 2022 flight.
ASAP “Move along! Nothing to see here.”

NASA’s Aerospace Safety Advisory Panel (ASAP) today released its annual report, and once again it demonstrated why I have been calling it corrupt and a waste of money for years.

The report can be read here [pdf], but let me warn you that its findings have nothing to do with ASAP’s original purpose (created after the 1967 Apollo 1 launchpad fire that killed three astronauts), to look at NASA projects to make sure the agency is not ignoring specific safety issues.

Instead, as it has done repeatedly in recent years, the panel focused on management goals and larger strategic issues, and as usual concluded that the best way to do things is to make NASA bigger with more control over the entire space industry.
» Read more

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Europe tests a new engine design aimed at nothing

10:57 am

ESA: where projects go to die
The European Space Agency:
home of dead-end projects

The European Space Agency (ESA) today announced that it has successfully completed a static fire test program of a new rocket engine, dubbed Greta, that uses alternative fuels in order to save the environment.

Greta uses hydrogen peroxide and ethanol as propellants, a more sustainable alternative with a lower carbon footprint compared to monomethyl hydrazine propellant used by most traditional rocket engines in this thrust range.

Greta was ignited multiple times from July to November 2025 and showed stable operations, including controlled shutdowns. During the test campaign the engine fired continuously for over 40 seconds at a time. Greta was tested on a new, low-cost and versatile mobile test stand with instruments measuring data such as pressure and temperature, which will be used to further optimise the engine.

The problem is that this engine is not being built for any specific rocket or spacecraft. As the press release notes vaguely, “This type of engine could be used on lunar landers or on kick stages, such as Astris that is being developed for Europe’s Ariane 6 rocket.”

In other words, this is a test program only, and could very well end up on the scrap heap once completed, because it belongs to no private company aimed at making profits.

NASA did these kinds of projects for decades, all for naught. The agency would make a splash with its press release, the propaganda press would extol blindly the wonders that have been achieved, and then the project would complete and get quietly shelved, stored somewhere in the government archives (possibly in the same place they put Indiana Jones’ Ark of the Covenant).

ArianeGroup is building this engine for ESA, so there is a small chance the company might decide to use it in a future rocket or spacecraft, but only if it makes sense financially. And there is no indication that this engine’s development is tied to financial concerns, in the slightest. For example, the program only calls for another round of static fire engine tests — using “parts for the flight-like motor design” — in 2027, more than a year hence. At that pace the engine will be obsolete before tests are completed.

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New analysis suggests Moon’s magnetic field shifted multiple times from weak to strong to weak

10:03 am

The uncertainty of science: A new analysis of Apollo lunar samples suggests that the Moon’s magnetic field actually shifted back and forth from strong to weak, with it being weak most of the time.

The problem scientists have had since the Apollo missions is that the Apollo samples, which all came from the relatively flat mare regions, tended to exhibit evidence of a strong past magnetic field, even though the Moon’s size and make-up suggested its field should have always been weak. This new research offers a solution:

The research team analysed the chemical makeup of a type of lunar rock – known as the Mare basalts – and found a new correlation between their titanium content and how strongly magnetised they are. Every lunar sample which had recorded a strong magnetic field also contained large amounts of titanium – and the samples containing less than 6 wt.% titanium were all associated with a weak magnetic field.

This suggests that the formation of high-titanium rocks and the generation of a strong lunar magnetic field are linked. The researchers believe that both were caused by melting of titanium-rich material deep inside the Moon, temporarily generating a very strong magnetic field.

Because the Mare basalts were an ideal landing site for the Apollo missions, due to being relatively flat, the astronauts brought back far more of the titanium-rich basalts (containing evidence for a strong magnetic field) than are representative of the lunar surface. As a result, large numbers of these rocks have been analysed by scientists back on Earth, and this was previously interpreted to mean that the lunar magnetic field was strong for long periods of its history.

Instead, the limited number of samples, all from the same regions, biased the conclusions. The scientists predict that future missions to more places on the Moon will confirm their findings.

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SLS is back in the Vehicle Assembly Building

9:43 am

Last night NASA yesterday successfully completed the roll back of its SLS rocket back to the Vehicle Assembly Building (VAB).

The SLS (Space Launch System) rocket and Orion spacecraft for NASA’s Artemis II mission arrived at the Vehicle Assembly Building from Launch Pad 39B at approximately 8 p.m. EST Feb. 25, at NASA’s Kennedy Space Center in Florida. While in the assembly building, technicians will troubleshoot the helium flow issue to the rocket’s upper stage, replace batteries on the rocket’s upper stage, core stage, and solid rocket boosters as well as service its flight termination system.

NASA officials have not said what will happen next, once that helium flow problem is resolved. I suspect NASA administrator Jared Isaacman will insist on another wet dress rehearsal to not only test the rocket’s troublesome fueling system, but to also test the helium system used to drain the tanks afterward.

If so, it is very unlikely a launch can occur prior to April 6th, when the present launch window closes. The odds of there being no issues on the next dress rehearsal are slim, based on SLS’s past record, and even if all goes well, the time margins are very very tight, allowing for no delays of any kind.

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