Tag: spaceflight

Senate committee approves Isaacman’s nomination as NASA administrator

11:27 pm

The Senate Commerce, Science, and Transportation Committee today approved the nomination of Jared Isaacman for NASA administrator, doing so for the second time after his first nomination was withdrawn by Trump in May and then re-instated his nomination in November.

All 15 committee Republicans and three of the 13 Democrats voted in favor: Senators Ted Cruz (Chairman, R-Texas), John Thune (R-South Dakota), Roger Wicker (R-Mississippi), Deb Fischer (R-Nebraska), Jerry Moran (R-Kansas), Dan Sullivan (R-Alaska), Marsha Blackburn (R-Tennessee), Todd Young (R-Indiana), Ted Budd (R-North Carolina), Eric Schmitt (R-Missouri), John Curtis (R-Utah), Bernie Moreno (R-Ohio), Tim Sheehy (R-Montana), Shelley Moore Capito (R-West Virginia), Cynthia Lummis (R-Wyoming), Maria Cantwell (Ranking Member, D-Washington), Tammy Baldwin (D-Wisconsin), and John Fetterman (D-Pennsylvania).

Ten of the 13 Democrats voted no: Senators Amy Klobuchar (D-Minnesota), Brian Schatz (D-Hawaii), Ed Markey (D-Massachusetts), Gary Peters (D-Michigan), Tammy Duckworth (D-Illinois), Jacky Rosen (D-Nevada), Ben Ray Luján (D-New Mexico), John Hickenlooper (D-Colorado), Andy Kim (D-New Jersey), and Lisa Blunt Rochester (D-Delaware).

In the previous April 2025 confirmation vote two Democrats, Kim and Hickenlooper, had voted yes. Now they voted no. In turn in April Fetterman had voted no and now changed his vote to yes.

Isaacman’s nomination still has to be confirmed by the Senate. No vote has been scheduled, but there have been indications that it will be scheduled in the next week or so. If not, the vote will have to wait until after the New Year. In either case, it is expected Isaacman will be approved handily.

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SpaceX launches 29 more Starlink satellites, sets new record for Falcon 9 reuse, dominates the world in rocketry

5:07 pm

First stage after landing for the 32nd time
First stage after landing for the 32nd time

SpaceX today launched another 29 Starlink satellites, its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida.

The first stage of its Falcon 9 rocket (B1067) flew for its 32nd time, a new record for a Falcon 9 first stage. As shown in the rankings below of the most reused launch vehicles, this stage is now just one flight from tying the space shuttle Atlantis:

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

Sources here and here.

Nor will it be long before SpaceX’s fleet surpasses all the shuttles.

Meanwhile in the 2025 launch race SpaceX’s dominance is overwhelming, as shown by the leader board:
» Read more

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Astronomers detect a seven-hour-long gamma ray burst, the longest many times over

4:40 pm

Very long GRB

Astronomers have detected the longest gamma ray burst (GRB) ever measured, lasting more than seven hours when most GRBs at most last mere seconds.

The image to the right was taken by the Hubble Space Telescope and is taken from figure 1 of the peer-reviewed paper [pdf]. The two hash marks indicate the location of the GRB, within the outer reaches of its host galaxy and inside one of its spiral arms, based on other data. The data also suggested the host galaxy is “massive [100 billion solar masses], dusty, and [an] extremely asymmetric system that is consistent with two galaxies undergoing a major merger.”

The GRB’s long length means that none of the known theories for its origin work. From the press release:

Of the roughly 15,000 GRBs observed since the phenomenon was first recognized in 1973, only a half dozen come close to the length of GRB 250702B. Their proposed origins range from the collapse of a blue supergiant star, a tidal disruption event, or a newborn magnetar. GRB 250702B, however, doesn’t fit neatly into any known category.

From the data obtained so far, scientists have a few ideas of possible origin scenarios: (1) a black hole falling into a star that’s been stripped of its hydrogen and is now almost purely helium, (2) a star (or sub-stellar object such as a planet or brown dwarf) being disrupted during a close encounter with a stellar compact object, such as a stellar black hole or a neutron star, in what is known as a micro-tidal disruption event, (3) a star being torn apart as it falls into an intermediate-mass black hole — a type of black hole with a mass ranging from one hundred to one hundred thousand times the mass of our Sun that is believed to exist in abundance, but has so far been very difficult to find. If it is the latter scenario, this would be the first time in history that humans have witnessed a relativistic jet from an intermediate mass black hole in the act of consuming a star.

None of these proposed explanations are confirmed. What is known is that this GRB was unique in all ways, defying all theoretical expectations.

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A small galaxy with lots of massive stars

9:54 am

A small galaxy with many massive stars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken by the Hubble Space Telescope and released this week as the European Space Agency’s (ESA) Hubble picture of the week.

This dwarf galaxy, 13 million light years away, is called Markarian 178 (Mrk 178). Though much smaller than the Milky Way, it is packed with massive stars. From the caption:

While the bulk of the galaxy is blue owing to an abundance of young, hot stars with little dust shrouding them, Mrk 178 gets a red hue from a collection of massive stars, which are especially concentrated in the brightest, reddish region near the galaxy’s edge. This azure cloud is home to a large number of rare objects called Wolf–Rayet stars. Wolf–Rayet stars are massive stars that are casting off their atmospheres through powerful winds. Because Mrk 178 contains so many Wolf–Rayet stars, the bright emission lines from these stars’ hot stellar winds are etched upon the galaxy’s spectrum. Particularly ionised hydrogen and oxygen appear as a red colour to Mrk 178 in this photo, observed using some of Hubble’s specialised light filters.

Massive stars enter the Wolf–Rayet phase just before they collapse into black holes or neutron stars. Because Wolf–Rayet stars last for only a few million years, researchers know that something must have triggered a recent burst of star formation in Mrk 178. At first glance, it’s not clear what could be the cause — Mrk 178 doesn’t seem to have any close galactic neighbours that could have stirred up its gas to form new stars. Astronomers believe that it was triggered by the interaction with a smaller satellite, as revealed by the presence of low surface brightness tidal features detected around Mrk 178 in deep imaging acquired with the Large Binocular Telescope.

And yet, these observations do not see this small satellite galaxy. It has either been completely absorbed into Mrk 178, or maybe this theory for explaining this dwarf galaxy’s make-up is flawed.

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More than 300 companies in discussions in connection Space Force’s “Golden Dome” project

9:40 am

According to guarded remarks by the head of Trump’s “Golden Dome” project, he has been in negotiations with more than 300 aerospace companies as the Space Force begins preliminary design work on this missile defense system.

President Trump’s Golden Dome czar says he has held “one-vs.-one” talks with more than 300 private companies in recent months to hash out the secretive architecture of the futuristic missile defense shield that the administration is determined to put into operation over the entire U.S. homeland by mid-2028.

In his first public remarks since being named to the position in June, Gen. Michael A. Guetlein, vice chief of space operations at the U.S. Space Force, told an audience at the annual Reagan National Defense Forum that although the layered design of the Golden Dome remains classified, he is confident that “our industry partners have a pretty good insight into what we’re doing.”

The project, which remains mostly cloaked in secrecy, received $24.5 billion in funding this year from Congress, with that number expected to rise considerably in later years.

My sense from Guetlein’s remarks is that right now the project is simply gathering already existing missile defense assets under one roof in order to get something operational by 2028 as ordered by Trump. Guetlein is also getting the enthusiastic support of the industry — which sees big bucks flowing their way from Golden Dome in the coming years. Many of the new space startups have been shifting operations from civilian space to this military project in anticipation of this funding.

While the concept is not unreasonable, considering the success seen with the Pentagon’s Patriot system and Israel’s Iron Dome, the secret structure so far of Golden Dome is almost guaranteed to lend itself to corruption and wasteful spending, a systemic problem within our present federal government.

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Korean Air and Hyundai Rotem sign deal to develop methane-fueled rocket engine

9:15 am

Two South Korean companies, the airline company Korean Air and the railroad company Hyundai Rotem, have signed a partnership agreement to develop a methane-fueled rocket engine by 2030, funded by the government’s Korea Research Institute for Defense Technology Planning and Advancement (KRIT).

Korean Air will lead the development of the engine’s turbopump, a core component often described as the heart of the propulsion system. The turbopump compresses liquid methane and oxidizer at extremely high pressures and speeds. Its development requires advanced engineering capable of handling cryogenic temperatures of -180°C to several hundred degrees, while rotating tens of thousands of times per minute.

Hyundai Rotem is a division of the automobile company Hyundai, but its focus is building railroads. The press release does not say what it will do as part of this partnership.

It is also unclear from the press release whether these companies will be own this engine for sale to others, or are developing it for the government. If the latter, the project will have a much more limited potential.

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Japanese startup Ispace expands deal with Japan Airlines

9:04 am

The Japanese lunar lander startup Ispace has now expanded its partnership deal with Japan Airlines (JAL) and two other associated JAL companies aimed at building transportation infrastructure to, from, and on the Moon.

The new agreement outlines the co-creation of systems and infrastructure supporting future lunar bases with high-frequency transportation to the lunar surface. Leveraging maintenance technology, air traffic control, and operations management expertise developed by JAL and JALEC in the aviation field, the two companies will aim to advance a sustainable presence on the Moon.

With the addition of JALUX to the partnership, the companies will explore new collaborations regarding space-related services for the public within the JAL Group. Consideration will also be given to sales cooperation for payloads sales utilizing ispace’s lunar transportation service. By combining ispace’s lunar transportation via its lander with the JAL Group’s aviation expertise and customer network, the partnership is expected to provide lunar transportation opportunities to diverse stakeholders.

A lot of vague PR language, but it does appear the goal is to develop lunar transportation products for what the companies expect to be a growing industry on the Moon.

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Russia and India agree to orbit their space stations in the same inclination, the same as ISS

8:02 am

India's Bharatiya Antariksh Station as outlined in 2024
India’s Bharatiya Antariksh Station as outlined in 2024.
Click for original image.

According to statements made by Roscosmos head Dmitry Bakanov at a conference in New Delhi this week, Russia and India have agreed to orbit their planned new space stations in the same inclination as ISS, 51.6 degrees, and coordinate their operations at both stations.

By choosing the same orbital geometry for ROS [Russian Orbital Station] and BAS [Bharatiya Antariksh Station], Moscow and New Delhi are effectively planning a continuous “replacement belt” in low Earth orbit. After the ISS is retired, crewed spacecraft launched from Russia and India would still be able to reach a major laboratory complex without radically changing launch trajectories or infrastructure, and—crucially—could, in principle, travel between the two stations with relatively modest maneuvers compared with a full plane-change.

Bakanov’s New Delhi comments build on a broader Roscosmos–ISRO understanding that the two stations should be able to support cross-visits, resource sharing and coordinated operations once both are flying.

This high inclination is required because spacecraft launching from Russia’s high latitudes can’t reach lower inclinations practically. India could put its station at a lower inclination (being at a lower latitude), but if this story is true, it apparently has decided there are advantages using an orbit that will allow cross-missions with Russia, including launches from Russia.

India plans to launch the first module of its station in 2028, and have the entire station operational by 2035. Russia says it will launch is station’s first module by 2027, with full operations beginning by 2030. While both schedules are likely to see delays, we should expect India to get its station built, while Russia will likely struggle to launch even one module.

In fact, I suspect this deal is Russia’s effort to find some partner that can carry it in the future, when its own station gets delayed.
» Read more

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SpaceX launches 28 Starlink satellites

5:37 pm

SpaceX today successfully launched another 28 Starlink satellites, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage completed its 12th flight, landing on a drone ship in the Pacific.

The leader board in the 2025 launch race.

160 SpaceX (a new record)
77 China
15 Rocket Lab
15 Russia

SpaceX now leads the rest of the world in successful launches, 160 to 129.

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China launches another set of Guowang satellites

9:18 am

China today successfully launched the 14th set of the Guowang internet of things satellites (also called SatNet), its Long March 8A rocket lifting off from its coastal Wenchang spaceport.

China’s state-run press made no mention of the number of satellites launched. Based on previous launches by the Long March 8A, it was probably nine, bringing the total number of Guowang satellites in orbit to about 114, after fourteen launches. The final plan calls for a constellation of 13,000. Should take awhile to complete.

The leaders in the 2025 launch race:

159 SpaceX
77 China (a new record)
15 Rocket Lab
15 Russia

SpaceX still leads the rest of the world in successful launches, 159 to 129.

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Perseverance moves west, into the barren hinterlands beyond Jezero Crater

1:56 pm

Perseverance looking west
Click for full resolution. Original images can be found here and here.

Overview map
Click for interactive map.

Cool image time! The panorama above was created using two pictures taken on December 4, 2025 (here and here) by the navigation camera on the Mars rover Perseverance. The view I think is looking west, away from the rim of Jezero Crater, which now lies behind the rover to the east.

The blue dot on the overview map to the right marks Perseverance’s position when it took this picture. The yellow lines indicate my rough guess as to the area covered by the panorama. The white dotted line marks the actual route the rover has taken, while the red dotted line the original planned route.

As I noted in my previous Perseverance update in mid-November, the science team has apparently decided to revise the route, abandoning initial plan of going back uphill towards the rim and instead travel downhill into the hills beyond. This is a region that orbital data has suggested might be rich in minerals, making it a prime mining location for future colonists. My guess is that the science team decided they needed to get there, that they had enough data from the rim and that it was now more important to get to the western mineralogy.

Though I am sure they are using the highest resolution orbital images from Mars Reconnaissance Orbiter (MRO) to guide them, the Perseverance team has not yet upgraded its interactive location map to show those details in this western region. Thus, the map in this area is fuzzy and not as detailed.

The team has also not published its revised planned route, so there is no way to guess where the rover will go next. It does appear however that it is finally leaving Jezero Crater for good.

And as all recent pictures from Perseverance, these images show this Martian landscape to be utterly barren, its hills and valleys softened by dust and eons of erosion from the very thin Martian wind. This is an alien place, though it has the potential with human ingenuity to bloom if we have the courage to try.

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New data strengthens the conflict in the observed value for the universe’s expansion rate

11:49 am

Graphic showing the conflict
Click for original.

The uncertainty of science: New research using a combination of ground- and space-based telescopes has not only failed to resolve the difference between the two values observed for the Hubble constant (the expansion rate of the universe), it actually confirms that conflict.

The graphic to the right nicely illustrates the conflict. Observations from the early universe come up with a value of 67-68 kiloparsecs per second per megaparsec for the Hubble constant. Observations from the present universe, including these new more precise measurements, come up with a value of 73-74. From the press release:

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have made one of the most precise independent measurements yet of how fast the universe is expanding, further deepening the divide on one of the biggest mysteries in modern cosmology.

Using data gathered from Keck Observatory’s Cosmic Web Imager (KCWI) as well as NASA’s James Webb Space Telescope (JWST), the Hubble Space Telescope (HST) the Very Large Telescope (VLT), and European Organisation for Astronomical Research in the Southern Hemisphere (ESO) researchers have independently confirmed that the universe’s current rate of expansion, known as the Hubble constant (H₀), does not match values predicted from measurements from the universe when it was much younger.

Cosmologists call this conflict “the Hubble Tension”, a absurd fake term expressly designed to hide the fact that they have no idea what’s going on. It isn’t “tension”, it is a perfect example of good observations coming up with contradictory data that no theory can explain.

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House hearing on Artemis yesterday signals strong doubts about the program in Congress

10:54 am

Artemis logo

The space subcommittee of the House Science, Space, and Technology Committee yesterday held a hearing on space, one day after the Senate held its own hearing on the nomination of Jared Isaacman as NASA administrator.

The House hearing however was not about Isaacman, but was apparently staged to highlight what appears to be strong reservations within Congress about NASA’s Artemis program, as presently structured. Its timing, just after the Isaacman hearing, was clearly aimed at garnering as much publicity as possible.

Video of the hearing can be seen here.

The focus of the hearing was also on China, and how there is real fear in Congress that its space program is outstripping NASA’s. Both the Republican committee chairman and the ranking Democrat stressed these concerns, and the need to beat China to the Moon and beyond.

More important, all four witnesses pushed the same point.

The rallying cry at this hearing as well as yesterday’s is the “race” with China.

…Foushee asked each of the witnesses for one-word answers to the question: is NASA on track to get back to the Moon before Chinese taikonauts arrive?

Not all succeeded with one word, but their sentiment was similar. Cheng replied “no, I am very pessimistic.” Swope: “worried.” Besha: “maybe.” Griffin: “no possible way…with the present plan.”

Former NASA administrator Mike Griffin was the most blunt in his criticism of NASA.
» Read more

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Airbus signs China’s Qianfan or Spacesail constellation to provide internet on its airplanes

10:14 am

In what is a major coup for one of China’s planned large constellations, Airbus yesterday agreed to use the Qianfan or Spacesail constellation to provide Wi-Fi service on its airplanes.

At a satellite internet industry ecology conference in east China’s Shanghai on Thursday, Airbus signed a market cooperation agreement on the satellite internet service with Shanghai Spacesail Technologies Co., Ltd. The Spacesail Constellation will provide high-speed, low-latency broadband satellite services via the high-speed connectivity system on aircraft, enhancing the in-flight experience for passengers.

The two parties will also work together to meet the needs of airlines, and promote the development of intelligent, personalized services based on low-orbit broadband communication technology.

Starsail is a direct competitor to Starlink. China has so far launched 119 satellites out of a planned first phase constellation of 648. Later phases could increase the constellation to as many as 10,000 satellites.

It seems puzzling why Airbus went with this Chinese constellation, rather than either Starlink or Amazon’s Leo (formerly Kuiper). Starlink is far more developed, while Leo has more satellites in orbit (154 to 119) than Spacesail. And both are private companies from the capitalistic west, not pseudo-companies controlled by the Chinese communists.

Maybe this deal is preliminary to a major purchase of Airbus airplanes by China. China wanted its system on those planes, and so Airbus agreed to go along.

Regardless, this deal tells us that this Chinese internet constellation is going to be a major competitor to both Starlink and Leo.

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New images of interstellar Comet 3I/Atlas

9:56 am

New Hubble image of 3I/Atlas
Click for original.

Juice image of 3I/Atlas
Click for original.

Both NASA and the European Space Agency (ESA) yesterday released new photos of the interstellar comet 3I/Atlas.

First, NASA released the image on the right, taken on November 30, 2025 by the Hubble Space Telescope. At the time the comet was about 178 million miles away. It clearly shows the comet’s coma of material, surrounding a bright nucleus at the center. The streaks are background stars.

Next, the mission team for Europe’s Juice probe, on its way to Jupiter, released one small portion of a picture taken by its navigation camera. That picture is the second to the right.

During November 2025, ESA’s Jupiter Icy Moons Explorer (Juice) used five of its science instruments to observe 3I/ATLAS. The instruments collected information about how the comet is behaving and what it is made of. In addition, Juice snapped the comet with its onboard Navigation Camera (NavCam), designed not as a high-resolution science camera, but to help Juice navigate Jupiter’s icy moons following arrival in 2031.

Though the data from the science instruments won’t arrive on Earth until February 2026, our Juice team couldn’t wait that long. They decided to try downloading just a quarter of a single NavCam image to see what was in store for them. The very clearly visible comet, surrounded by signs of activity, surprised them.

Not only do we clearly see the glowing halo of gas surrounding the comet known as its coma, we also see a hint of two tails. The comet’s ‘plasma tail’ – made up of electrically charged gas, stretches out towards the top of the frame. We may also be able to see a fainter ‘dust tail’ – made up of tiny solid particles – stretching to the lower left of the frame.

The image was taken on 2 November 2025, during Juice’s first slot for observing 3I/ATLAS. It was two days before Juice’s closest approach to the comet, which occurred on 4 November at a distance of about 66 million km.

Because Juice is presently behind the Sun (as seen from Earth), most of the data it collected during its closest approach won’t be downloaded until February. This one partial image is only a fore taste.

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China launches two small test communications satellites

9:35 am

China today successfully placed two experimental communications satellites into orbit, its solid-fueled Kuaizhou-1a rocket lifting off from its Jiuquan spaceport in northwest China.

China’s state-run press provided no information on where the rocket’s lower stages crashed. The rocket is supposedly owned and operated by a Chinese pseudo-company, but its solid-fueled heritage clearly comes from military missiles, and thus could only have been developed and used under the full supervision of China’s military.

The leaders in the 2025 launch race:

159 SpaceX
76 China (a new record)
15 Rocket Lab
15 Russia

SpaceX still leads the rest of the world in successful launches, 159 to 128.

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“Blemish” on Orion hatch’s “thermal barrier” delays countdown rehearsal

9:24 am

According to a report yesterday, a countdown rehearsal two weeks ago for the Orion/SLS stack that also included the four astronauts to fly on the next mission was delayed because a “blemish” was found on the Orion hatch “thermal barrier.”

“Prior to the countdown demonstration test, the agency had planned to conduct a day of launch closeout demonstration. This demonstration was paused when a blemish was found on the crew module thermal barrier, preventing hatch closure until it could be addressed,” the statement read. “A repair was completed on Nov. 18 allowing the closeout demo to successfully complete on Nov. 19. To allow lessons learned from the closeout demo to be incorporated into the planning for the countdown demonstration test, the decision was made to proceed into water servicing next and place the countdown demonstration test after this servicing completes.”

It was not clear from the NASA statement how a ‘blemish’ prevented the closure of the hatch and NASA would not say exactly when the countdown rehearsal will take place. Declining to provide further details, the space agency spokesperson said: “NASA remains on track to launch Artemis 2 no later than April 2026 with opportunities to potentially launch as soon as February.”

NASA released no additional details, though it claimed this delay will have no impact on the launch schedule for the Artemis-2 mission, planned for launch no later than April 2026.

The lack of detailed information from NASA is disturbing. What was the “blemish?” It appears it was on the rubber gaskets that circle the hatch’s edge. What caused it? Was it some damage? A production flaw? NASA’s general silence forces us to consider more serious possibilities.

I continue to pray that these four astronauts are not going to end up as sacrificial lambs to the political scheduling demands that is forcing NASA to push on blindly, as it did with both the Challenger and Columbia failures, ignoring or minimizing issues that common sense should never be minimized.

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The insane terrain inside Mars’ Death Valley

12:30 pm

taffy terrain
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on October 27, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labels this a “twisted surface,” to which I think we all can agree. What we are looking at is a geological feature found only on Mars in only one region that has been labeled “taffy terrain” by scientists. According to a 2014 paper, the scientists posit that this material must be some sort of “a viscous fluid,” naturally flowing downward into “localized depressions.” Because of its weird nature I have posted many cool images of it in the past (see here, here, here, here, here, and here).

In the case of the image to the right, the red dot marks the peak of a small knob, with the green dot on the upper left the low point about 900 feet below. As you can see, the taffy has migrated into the depressions, as some flowing material would.
» Read more

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Yesterday’s Senate nomination hearing for Jared Isaacman was irrelevant; America’s real space “program” is happening elsewhere

10:20 am

Jared Isaacman
Billionaire Jared Isaacman

Nothing that happened at yesterday’s Senate hearing of Jared Isaacman’s nomination to be NASA’s next administrator was a surprise, or very significant, even if most media reports attempted to imply what happened had some importance. Here are just a small sampling:

To be fair, all of these reports focused on simply reporting what happened during the hearing, and the headlines above actually provide a good summary. Isaacman committed to the Artemis program, touted SLS and Orion as the fastest way to get Americans back to the Moon ahead of the Chinese, and dotted all the “i”s and crossed all the “t”s required to convince the senators he will continue the pork projects they so dearly love. He also dodged efforts by several partisan Democrats to imply Isaacman’s past business dealings with Musk and SpaceX posed some sort of conflict of interest.

What none of the news reports did — and I am going to do now — is take a deeper look. Did anything Isaacman promise in connection with NASA and its Artemis program mean anything in the long run? Is the race to get back to the Moon ahead of China of any importance?

I say without fear that all of this is blather, and means nothing in the long run. The American space program is no longer being run by NASA, and all of NASA’s present plans with Artemis, using SLS, Orion, and the Lunar Gateway station, are ephemeral, transitory, and will by history be seen as inconsequential by future space historians.
» Read more

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Weird mottled terrain in the dry tropics of Mars

1:11 pm

Mottled ridges
Click for full image.

Cool image time! The picture to the right, cropped, reduced, and enhanced to post here, was taken on October 28, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled by the science team as “mottled ridged terrain,” it shows a relatively flat area of scattered broken-up flat-topped ridges and knobs, following no clear pattern of formation.

In trying to research this, I could only find one paper [pdf] discussing this kind of mottled ridges that did a survey of similar features across a large region to the northwest. That paper could not determine what caused such features, but came up with hypothesis. From the abstract:

While it is not possible to determine the precise formation mechanism of these polygonal ridge networks from our new data, their formation can be assessed in terms of three possibly separate processes: (1) polygonal fracture formation, (2) fracture filling and (3) exhumation. We find that polygonal
fracture formation by impact cratering and/or desiccation of sedimentary host deposits is consistent with our results and previous spectral studies. Once the polygonal fractures have formed, fracture filling by clastic dikes and/or mineral precipitation from aqueous circulation is most consistent with our results. Exhumation, probably by aeolian processes that eroded much of these ancient Noachian terrains where the ridges are present caused the filled fractures to lie in relief as ridges today.

To put this in plain terms, the initial polygon-patterned cracks were formed by either an impact or the drying out of the surface (similar to the cracks seen on dried mud here on Earth). Both could have contributed. Then material welled up from below, either lava or mud, that hardened to fill the cracks. Later erosion by wind stripped away the surface, leaving behind these broken ridges.

As always, the location adds some very interesting context.
» Read more

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Sunspot update: Sunspot activity again crashes far below predictions

11:17 am

It is the start of another month, so it is time again to post my monthly update of the never-ending sunspot cycle on the Sun, using NOAA’s own monthly update of its graph of sunspot activity and annotating it with extra information to illustrate the larger scientific context.

The green dot on the graph below indicates the level of sunspot activity on the Sun’s Earth-facing hemisphere during the month of November. And once again, the Sun surprised us, producing far less sunspots than expected, based on the April 2025 prediction by NOAA’s panel of solar scientists (as indicated by the purple/magenta line).
» Read more

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France’s space agency CNES found liable for environmental damage at French Guiana spaceport

9:36 am

French Guiana spaceport
The French Guiana spaceport. The Diamant launchsite is labeled “B.”
Click for full resolution image. (Note: The Ariane-5 pad is now the
Ariane-6 pad.)

France’s space agency CNES, which has taken back management from Arianespace of the French Guiana spaceport it owns, has now been found liable for destroying a protected habitat as it began construction to upgrade the old abandoned Diamant rocket launch site into a pad for several of Europe’s new commercial rocket startups.

In March 2022, the regional environmental authority of French Guiana (DGTM) formally informed CNES that it could not begin demolition or earthworks at the Diamant site without first securing the legally required species and water-law authorisations. Despite this, the agency leveled the area in the preceding weeks, with the environmental NGO CERATO discovering the destruction in April 2022.

In August 2022, the DGTM carried out an unannounced inspection of the Diamant site and found further destruction of protected habitats linked to the agency’s PV2 solar farm project. In October 2022, the PV2 project manager informed DGTM that CNES had known about the presence of protected species on the PV2 site since 1 July 2022, yet began earthworks anyway.

In response to repeated flouting of DGTM procedures, the Prefect of French Guiana, the top regional authority, issued a stop-work order requiring CNES to halt all works at both sites.

It appears this stop-work order has contributed to delays in construction. The news now is that the case appears to have been settled.

The agency has been ordered to repair the damage within three years or face a fine of €50,000. It will also be required to finance ecological compensation actions elsewhere on the grounds of the Guiana Space Centre. The conclusion of the lawsuit will allow the agency to fully resume construction at the site, which it had been ordered to stop in late 2022.

In other words, CNES has been told to spend money elsewhere at the spaceport to make the local environmental authorities happy. It remains unclear how these delays have or even will impact the plans of the Spanish rocket startup PLD, which hopes to do the first orbital launch of its Miura-5 rocket from this site in 2026. PLD expects the first flight-worthy Miura-5 to be delivered to French Guiana early next year, so the delays in French Guiana have not yet effected its plans. That might now change if the site won’t be ready as planned.

This whole story however does indicate a fundamental problem within all of Europe’s space regulatory infrastructure that in the future is likely to hinder the development of its new commercial space industry. Europe’s leadership likes its red tape, and has done nothing to reduce it as it has shifted from the government-run model (where it controls and owns everything) to the capitalism model (where it buys what it needs from an independent competing private sector).

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Russian astronaut kicked out of the U.S. for stealing proprietary SpaceX designs

9:10 am

A Russian astronaut scheduled to fly on the next upcoming Dragon mission to ISS as part of the barter agreement between NASA and Roscosmos, has been removed from that mission after being caught taking pictures of SpaceX equipment in violation of State Department ITAR regulations.

Russian cosmonaut Oleg Artemyev has been removed from the prime crew of SpaceX’s Crew-12 mission to the International Space Station and replaced by fellow Roscosmos cosmonaut Andrey Fedyaev after sources alleged he photographed confidential SpaceX materials in California in violation of US export control rules, according to The Insider on December 2.

The outlet reported that Trishkin also said NASA did not want the controversy around Artemyev to become public, while Artemyev was removed from training at SpaceX’s Hawthorne California, facility last week after allegedly photographing SpaceX engines and other internal materials on his phone and taking them off-site.

The sources for this story all come from within Russia but it appears the story is true. It now appears that when the next manned Dragon launches to ISS in February, Fedyaev will fly instead of Artemyev.

The irony of this is that Russia doesn’t really have the capability of developing a comparable SpaceX rocket using this information. If anything, it would be more likely for Russia to sell the information to China in exchange for military hardware it could use in the Ukraine.

Either way, this violation by Artemyev of ITAR does not speak well for the future of the U.S./Russian partnership in space. It will certainly continue until ISS is retired, but this incident cements the likelihood that it will then end. None of the American commercial stations have shown any interest in signing agreemennts with Russia, though they all have signed numerous international deals, some with former Soviet bloc nations and even former Soviet provinces. After ISS Russia will be on its own.

And based on its inability to develop anything new in the past three decades, don’t expect much from it in space.

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China’s Zhuque-3 copycat Falcon 9 reaches orbit on first launch; 1st stage crashes

10:32 pm

Zhuque-3 at launch
Screen capture from China’s
state-run press

The methane-fueled Zhuque-3 rocket built by China’s Landspace pseudo-company successfully reached orbit today on its first launch, though the attempt to land the first stage vertically for later reuse failed when it crashed near its landing zone.

The reusable rocket, designed by the Beijing-based commercial space company LandSpace, was launched from the Jiuquan Satellite Launch Centre in China’s northwest at noon on Wednesday. After reaching a low-Earth orbit, the first stage of the rocket – the lower section that lifts the vehicle off the ground – appeared to catch fire in the air before crashing near the target recovery site.

I think a video of that failed landing can be seen here, though I cannot be sure, as it appeared to go up on youtube immediately at launch time, almost too soon.

For the Landspace pseudo-company, getting this rocket to orbit on the first try is a major success. It plans several more launches in the coming months, with each attempting a similar landing. Based on SpaceX’s history in this matter, it should not take it long to achieve its first landing success.

The leaders in the 2025 launch race:

158 SpaceX
75 China (a new record)
15 Rocket Lab
15 Russia

SpaceX still leads the rest of the world in successful launches, 158 to 127.

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SpaceX launches 29 more Starlink satellites

3:26 pm

SpaceX today successfully launched another 29 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral in Florida.

The first stage completed its 25th flight, landing on a drone ship in the Atlantic. With this flight, this booster, B1077, has now tied the space shuttle Endeavour in reuses, and is only three behind the Columbia shuttle.

The leaders in the 2025 launch race:

158 SpaceX (a new record)
74 China
15 Rocket Lab
15 Russia

SpaceX now leads the rest of the world in successful launches, 158 to 126.

3 comments

Astronomers detect another galaxy that shouldn’t be there, so soon after the Big Bang

11:38 am

A spiral galaxy too early in the universe
Click for original.

Using the Webb Space Telescopes astronomers have detected another galaxy that shouldn’t be there, so soon after the Big Bang.

The image to the right comes from figure 1 of the peer-reviewed paper. The galaxy’s two spiral arms form a backward “S” emanating out from the galaxy’s nucleus. From the press release:

Using JWST, researchers Rashi Jain and Yogesh Wadadekar spotted a galaxy remarkably similar to our own Milky Way. Yet this system formed when the cosmos was barely 1.5 billion years old—roughly a tenth of its present age. They named it Alaknanda, after the Himalayan river that is a twin headstream of the Ganga alongside the Mandakini—fittingly, the Hindi name for the Milky Way.

…It already has two sweeping spiral arms wrapped around a bright, rounded central region (the galaxy’s ‘bulge’), spanning about 30,000 light-years across. Even more impressively, it is annually churning out new stars, their combined mass roughly equivalent to 60 times the mass of our Sun. This rate is about 20 times that of the present-day Milky Way! About half of Alaknanda’s stars appear to have formed in only 200 million years—a blink in cosmic time.

This galaxy underlines the difficulty for cosmologists by much of Webb’s data of the early universe. Present theories of galaxy formation say it should take billions of years to form such a spiral galaxy, meaning it shouldn’t exist as yet so soon, only 1.5 billion years after the Big Bang.

Either the theories have to be revised substantially, or they are simply wrong entirely. Or we are missing or lacking in some fundamental information about the early universe that skews all our theories.

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Blue Origin faces opposition renewing its permit to dump waste water at Florida launch facility

11:17 am

Chicken Little strikes again!
Chicken Little strikes again!

It appears several local politicians as well as the typical anti-everything activists are expressing opposition to Blue Origin’s request to renew its permit to dump waste water at its Florida launch facility.

Some county commissioners have concerns about the proposal because of how much money and effort has gone to cleaning up the Indian River. “That’s really troubling to me especially when we are spending so much money as a community on the half-cent sales tax and the save the Indian River Lagoon tax,” said Brevard County Commissioner Katie Delaney.

Space experts say large-scale companies don’t necessarily follow rules and regulations put on them. “There has been all sorts of industrial waste issues associated with the aerospace industry not just here in Florida but all across the country,” Florida Tech space professor, Don Platt, said.

The water is likely that used during launches to dampen the shock produced by the rocket’s engines, and like SpaceX’s systems, is almost certainly potable and harmless. This is also a permit that Blue Origin obtained five years ago and has used without harm during all its launchpad tests and launches.

None of this whining really matters, as it appears the county commission has no authority over the matter. The permit was issued by the state’s environmental department which will almost certainly approve the renewal. It is just unfortunate that these whiners almost always get positive coverage from our propaganda press. In this case the local Fox affiliate that reported the story clearly made no effort to research anything. It just simply spouted back the grumbles of these politicians and activists.

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Three new papers find sugars, “gum,” and lots of stardust in the samples brought back from the asteroid Bennu

10:24 am

Bennu
The asteroid Bennu

Three new papers published this week have found that the samples brought back by OSIRIS-REx from the asteroid Bennu contained some unexpected or unusual materials, including sugars that are important for biology, a gumlike material never seen before, and a much higher amount of stardust than expected.

The papers can be read here, here, and here.

As the press release notes, describing the sugar discovery:

The five-carbon sugar ribose and, for the first time in an extraterrestrial sample, six-carbon glucose were found. Although these sugars are not evidence of life, their detection, along with previous detections of amino acids, nucleobases, and carboxylic acids in Bennu samples, show building blocks of biological molecules were widespread throughout the solar system.

The stardust results found six-times the abundance previously found in other samples.

As for the “gum”, this was possibly the strangest discovery of all, coming from the solar system’s earliest time period.
» Read more

3 comments

All eight ports on ISS occupied for the first time; Longest manned mission about to start?

9:56 am

ISS as presently configured
ISS as presently configured. Click for original.

For the first time in its more than quarter century history, all eight docking ports on ISS are occupied, as shown in the graphic to the right.

For the first time in International Space Station history, all eight docking ports aboard the orbital outpost are occupied following the reinstallation of Northrop Grumman’s Cygnus XL cargo spacecraft to the Earth-facing port of the station’s Unity module. The eight spacecraft attached to the complex are: two SpaceX Dragons, Cygnus XL, JAXA’s (Japan Aerospace Exploration Agency) HTV-X1, two Roscosmos Soyuz crew spacecraft, and two Progress cargo ships.

This milestone follows the reattachment of the Cygnus XL spacecraft, supporting the Northrop Grumman-23 commercial resupply services mission for NASA, which was removed last week by the robotics officer at the agency’s Mission Control Center in Houston using the space station’s Canadarm2 robotic arm. The Cygnus XL movement was coordinated between NASA, Northrop Grumman, and Roscosmos to provide appropriate clearance for the arriving crewed Soyuz MS-28 spacecraft on Nov. 27.

Cygnus will remain attached to the orbiting laboratory until no earlier than March 2026, when it is scheduled to safely depart and dispose of up to 11,000 pounds of trash and unneeded cargo when it harmlessly burns up in Earth’s atmosphere.

This situation will not last of course, and in fact it may never happen again before the station is retired around 2030. First, Cygnus will leave in March. Second, one Russian Soyuz capsule will leave shortly, as the presence of two simply indicates a crew rotation is underway.

Third, it is presently unclear when the Russians will be able to launch further Soyuz or Progress capsules. » Read more

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