Another American orbital capsule company turns to Australia for a landing spot

11:38 am

Proposed Australian spaceports
Australian spaceports: operating (red dot) and proposed (red “X”)
Click for original image.

The American orbital capsule company Lux Aeterna has now signed a deal with the Australian spaceport startup Southern Launch to allow its capsules to land at its Koonibba Test Range in southern Australia.

Under the agreement, two Lux Aeterna Delphi satellites will return to the Koonibba Test Range with Southern Launch. The first mission is targeted to return in 2027.

Lux Aeterna, based in Denver, Colorado, USA, is developing a reusable satellite platform designed to operate in Low Earth Orbit and support defense, intelligence, and commercial missions such as technology demonstrations, hypersonic and materials testing, in-orbit servicing, and in-space manufacturing. The Delphi platform and its core components are engineered to withstand the thermal and structural demands of atmospheric re-entry, enabling routine return and recovery of both the satellite bus and payload to support expedited technology development.

…Under the partnership, Southern Launch will provide end‑to‑end services for each orbital re-entry, including regulatory approvals, range operations, air and maritime coordination, and recovery operations.

This is the second American orbital capsule company to sign with Southern Launch. Varda was the first, and it did so because red tape in the U.S. made use of an American drop zone impractical. It appears Lux Aeterna has come to the same conclusion, and thus went to Australia instead.

This is an issue that needs to be addressed by the Trump administration. It is absurd that red tape is forcing American capsules to land in another country on the other side of the globe.

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Isar ready for second launch attempt

11:26 am

Map of spaceports surrounding Norwegian Sea
Spaceports surrounding the Norwegian Sea

In a press release earlier this week, the German rocket startup Isar Aerospace announced that it has successfully completed static fire tests of both stages of its Spectrum rocket, and is now prepared for a second attempt to reach orbit, nine months after the first attempt failed seconds after liftoff.

Though its press release made no mention of a launch date, rocketlaunch.live is listing that attempt for January 13, 2026, taking place at Norway’s Andoya spaceport.

If successfully, the launch will achieve a number of milestones. First, Isar will be the first German rocket company ever to launch a rocket into orbit. Germany’s government has for decades been a partner in Arianespace, the commercial arm of the European Space Agency, but no private company has ever built and launched its own rocket.

Isar’s success will also beat out the German startup Rocket Factory Augsburg and Spanish startup PLD, both of which are getting close to a first launch as well.

Second, the launch from Andoya will make that spaceport the first in Europe to place a satellite into orbit, despite coming to this commercial spaceport competition years after two of Great Britain’s proposed spaceports in northern Scotland. While Norway’s government has greased the rails, removing red tape to allow Andoya to become operational quickly (and thus attracting rocket startups like Isar, Firefly, and Astrobotic), Great Britain’s red tape has delayed its spaceports for years, while putting one rocket company, Virgin Orbit, out of business.

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Russia launches more than fifty satellites

11:03 am

Russia today successfully launched more than fifty satellites, its Soyuz-2 rocket lifting off from its Vostochny spaceport in far eastern Russia.

The main payloads were two Russian Earth imaging satellites, both dubbed Aist-2T

In addition to the launch of the Aist-2T pair, the same Soyuz-2-1b rocket was also booked to carry 50 dual-purpose secondary payloads, ranging from light-weight experimental satellites down to an assortment of educational cubesats and a small carrier platform, itself designed to release the tiniest satellites known as pikosats. A total of 33 payloads were to be deployed from 17 launch containers provided by Moscow-based Aerospeis Kapital.

The most notable secondary payloads on the mission were two Marafon-IoT experimental satellites, developed at ISS Reshetnev and intended for paving the way to the so-called Internet-of-Things satellite system, however, by the time they reached the launch pad, the main project was facing cancellation due shrinking Russian space budget.

The most significant foreign payload on the Aist-2T mission was a trio of Iranian dual-purpose satellites all intended for remote-sensing of the Earth’s surface. Other small foreign payloads were ordered by various institutions in Montenegro, Kuwait, Qatar, Ecuador and Belarus. [emphasis mine]

Russia continues to show an inability to get anything of substance into orbit due to a lack of capital, caused by Putin’s policies of squelching competition and invading other countries.

The leaders in the 2025 launch race:

168 SpaceX
88 China (a new record)
18 Rocket Lab
17 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 148.

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China launches weather satellite

8:35 pm

China today (December 27 in China) successfully placed a new Fengyun-4 satellite into orbit, its Long March 3B rocket lifting off from its Xinchang spaceport in southwest China.

China’s state-run press provided no information about where the rocket’s lower stages and four strap-on boosters, all using very toxic hypergolic fuels, crashed inside China. This Fengyun-4 satellite is the third in a new constellation of seven upgraded weather satellites.

The leaders in the 2025 launch race:

168 SpaceX
88 China (a new record)
18 Rocket Lab
16 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 147.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

China launches nine more satellites in Guowang constellation

12:18 pm

Last night China successfully placed nine more satellites for the Guowang (or Satnet) internet-of-things constellation, its Long March 8A rocket lifting off from its Wenchang coastal spaceport, The constellation now has 128 satellites in orbit out of a planned 13,000. Though the rocket’s lower stages all fell in the ocean, some landed within the Philippines, once again requiring that government to warn its citizens to avoid the drop zones.

China’s last night also scrubbed a launch of its solid-fueled Smart Dragon-3 (also Jielong-3) rocket, set to lift off from a launch platform off the coast of northeastern China. The launch was rescheduled for December 28th. China also had a Long March 3B launched scheduled for this morning, but no news about that launch as yet been published.

The leaders in the 2025 launch race:

168 SpaceX
87 China (a new record)
18 Rocket Lab
16 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 146.

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Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Former ULA CEO Tory Bruno now working for Blue Origin

11:05 am

In a tweet on X, Blue Origin today announced that former ULA CEO Tory Bruno is now working for them, acting as president for its “newly formed National Security Group.”

Blue Origin’s CEO, David Limp, quickly chimed in with his own tweet, endorsing the hire.

My guess is that Limp felt Blue Origin needed someone with experience dealing with the military, and Bruno brings that capability, having managed ULA’s military launch contracts for years. It also means Blue Origin is very serious about grabbing a larger market share of those launches once its New Glenn rocket begins launching regularly.

I also wonder if Bruno grew tired of the culture at ULA, which has appeared resistant to building reusable rockets. Bruno sold Vulcan initially with the idea of quickly upgrading it to recover its engines for reuse, but by all signs the company has been very unenthusiastic about the idea. (The idea itself might not be viable, but overall ULA has shown no interest in developing a reusable rocket of any sort.) Bruno might have decided he’d rather work with a company enthused by reusability, especially as this is the future. Once ULA completes its large Amazon Leo launch contract it faces a bleak future, with many newer cheaper reusable rockets coming on line.

It could also be that Bruno was made an offer he couldn’t refuse. Money is always a powerful incentive.

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Japanese bank invests in Starlab

9:41 am

Starlab design in 2025
The Starlab design in 2025. Click
for original image.

The consortium building the Starlab space station today announced that the Sumitomo Mitsui Trust Bank of Japan has invested in the project.

Through this investment, SuMi TRUST Bank will support Starlab’s efforts to develop and commercialize space station technologies, while exploring opportunities for collaboration that contribute to the advancement of space-related industries and broader industrial development in Japan and globally.

The press release provided no other information, other than this boilerplate PR jargon. The amount invested was not mentioned.

Regardless, the investment tells us two things: First, Starlab has now raised more than $400 million in investment capital, and appears in a solid position to begin work on its large single module station to be launched on Starship.

Second, the investment in this American-based space project by this Japanese bank speaks volumes about the sad state of Japan’s own commercial space industry. Other than the lunar lander Ispace, Japan has seen little success from any other major rocket startups. One rocket startup, Interstellar, has obtained some investment capital, but the development of its rocket seemingly stopped for the past five years. Another, Space One, has had one launch failure. And though Honda has completed a successful vertical take-off and landing of a small rocket prototype, it doesn’t expect to attempt an orbital launch until 2030.

Meanwhile, the two rockets owned by Japan’s space agency JAXA, the H3 and Epsilon, are grounded because of launch failures.

It appears this bank believes it is more likely to earn profits from this American project than from these other Japanese space efforts.

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The Pied Piper of Hamelin

3:01 pm

An afternoon pause: This TV movie, the first ever, was produced by NBC and first aired in 1957. It subsequently played every Christmas season for most of the next decade. It has been forgotten in the ensuing years, something I think must be rectified, especially for the children of today. It is clever, sophisticated, innocent, entertaining, and above all, firmly American in every way.

Thus, I will now renew that past tradition.

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December 25, 2025 Quick space links

2:45 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.

5 comments

Charles Dickens’ A Christmas Carol

12:10 pm

A mid-day pause: As I now do practically every Christmas, I bring you the classic 1951 version of Charles Dickens’ A Christmas Carol, starring Alastair Sim. In my opinion still by far the best adaption of the book and a truly wonderful movie.

And as I noted in a previous year:

Dickens did not demand the modern version of charity, where it is imposed by governmental force on everyone. Instead, he was advocating the older wiser concept of western civilization, that charity begins at home, that we as individuals are obliged as humans to exercise good will and generosity to others, by choice.

It is always a matter of choice. And when we take that choice away from people, we destroy the good will that makes true charity possible.

And in 2016 I said this:

I watched this again and felt like weeping, not because of the sentimentality of the story itself but because it is so seeped in a civilized world that increasingly no longer exists. There was a time when this was our culture. I fear it is no longer so. As noted by the Spirit of Christmas Present, “This boy is ignorance, this girl is want. Beware them both, but most of all beware this boy.”

It seems for the past few decades we have not heeded that warning, and are now reaping the whirlwind.

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The SpaceX alumni that are reshaping the space industry

10:16 am

Link here. The article provides a very comprehensive list of the many former SpaceX employees who have left SpaceX to form their own companies, most of which in space or related industries, raising $3 billion in private investment capital.

The list includes a lot of very small operations doing work on the periphery, such as in the health industry or software for a variety of industries, not just space. It also includes some new major space players, such as the orbital tug company Impulse, and the recoverable capsule company Varda.

For some reason the article refers to this new generation of space entrepreneurs as the “SpaceX Mafia”, as if they are teaming up like mobsters to eliminate any competition. This is beyond false. Instead, they are the epitome of competition and the American dream, each forming their own company to push new ideas.

Take a look. It provides a nice and very hopeful overview of the future.

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Avio wins launch contract from Taiwan to launch four satellites

10:01 am

The Italian rocket company Avio has won a $81 million launch contract from Taiwan’s space agency TASA to use its Vega-C rocket to launch four Earth observation satellites.

FORMOSAT-8 will be a constellation of six high-resolution optical Earth observation satellites. The first was launched aboard a SpaceX Falcon 9 rocket in November. The next, FORMOSAT-8B, which does not yet have a publicly announced launch services provider, is, according to TASA, slated for launch in December 2026. The FORMOSAT-9 constellation will be made up of two synthetic aperture radar (SAR) satellites, which are expected to be launched in 2028 and 2030, respectively.

All four satellites will be launched aboard Vega C rockets from the Guiana Space Centre in French Guiana.

It is not clear if this contract involves four separate launches, or two (one for Formosat-8A and B, and a second for Formosat-9A and B). It is also not clear if this contract is one of the two launch contracts Avio had previously announced, without revealing the customers.

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Russia launches classified weather satellite

9:47 am

Russia today successfully placed a long delayed first satellite in a new series of weather radar satellites, its Soyuz-2 rocket lifting off from the Plesetsk spaceport in northeast Russia.

The satellite, Obzor-R1, was originally proposed in 2015 for launch in 2019. It was placed in a polar orbit, so the rocket’s lower stages all landed in the oceans north of Russia.

The leaders in the 2025 launch race:

168 SpaceX
86 China
18 Rocket Lab
16 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 145.

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Kathy Mattea – Mary did you know

6:01 pm

An evening pause: Another reprise, this time from 2020. As I wrote then: “This song honoring Jesus I think really speaks of every child born on Earth, and how every parent should see them. As Wordsworth said, they come ‘trailing clouds of glory.'”

Did you know that your baby boy has walked where angels trod?
When you kissed your little baby then you kissed the face of god.

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December 24, 2025 Quick space links

2:45 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.

12 comments

Layers in the biggest canyon in the solar system

12:07 pm

Overview map

Layers in the solar system's biggest canyon
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on October 24, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The white dot on the overview map above marks the location, on the lower slopes of the south rim of Valles Marineris, the largest canyon on Mars and by far the largest so far discovered in the solar system. From the rim to the floor the elevation drop here is about 23,000 feet, with the layers shown in the picture to be about 5,000 feet above the canyon floor.

Those layers cover about 500 feet of that elevation drop. Each layer suggests a past event, possibly volcanic eruptions. The curved headwall near the upper left also suggests that some layers were avalanches or mass wasting events flowing downhill to the northeast, one on top of another.

As always, the scale of Valles Marineris is hard to imagine. The rim is 20 miles to the south, but the canyon’s opposite rim is from 140 to 300 miles to the north. You could fit two to five Grand Canyons in this part of Valles Marineris and each would look small in comparison.

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Next Starship/Superheavy launch in March?

9:17 am

According to this detailed update on SpaceX’s work at Boca Chica by NASASpaceflight.com, we should expect the next orbital test flight of Starship/Superheavy some time in March 2026.

As far as the launch date for this first flight of Block 3, sources point to March as the most likely viable timeframe. This launch will mark numerous firsts, from the vehicle, its Raptor 3 engines, and the first use of the upgraded Pad 2 architecture that will be mirrored at Pad 1, along with 39A and SLC-37 on the East Coast.

Block 3 refers to a major upgrade in Starship, which will fly prototype #39. Meanwhile, work getting Superheavy prototype #19 prepped has moved fast, following the loss of #18 from an explosion during ground fueling tests.

Recent observations show significant milestones: after welding the liquid oxygen (LOX) tank to the engine section (including pre-installed landing tanks and transfer tube), teams added methane tank barrels and the forward dome with its integrated hot staging ring. By December 20, all barrel sections were delivered and stacked, achieving this in just 25 days from November 25 — half the 42 days required for Booster 17, the final Version 1 booster.

The report also said that a February launch is a possibility, but is less likely.

Meanwhile, news outlets are reporting that the Trump administration is considering giving SpaceX about 775 acres in a wildlife preserve adjacent to Starbase in exchange for 692 acres SpaceX owns elsewhere. If confirmed, this deal would be similar to the land swap Texas had wished to do with SpaceX the company scrapped last year.

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Italian rocket company Avio wins two launch contracts valued at $117 million total

9:07 am

Last week the Italian rocket company Avio announced that it has signed launch contracts for its Vega-C rocket with two different unnamed satellite customers, the value of the contracts equaling $117 million total.

The satellites to be launched will be used for Earth observation, environmental monitoring and resource management purposes for civil and scientific applications, providing high-resolution imagery as well as best-in-class geolocation accuracy. The passengers will feature a mass ranging from more than 400 to more than 1,000 kilograms and will be deployed into a ~500 km Sun-synchronous orbit.

These contracts totally secure over EUR 100 million for launch services to be scheduled between 2028 and 2031.

Though the customers remain unnamed, the Avio release indicated that one was from Europe and the other was non-European. That latter contract deal could be linked to Avio’s announcement at about the same time that it is spending $500 million to build a rocket facility in Virginia. If the non-European customer was American and its satellites were for the Pentagon, having a U.S.-based facility made that contract award far more likely.

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Recovering Maven appears increasingly dim

8:57 am

According to a NASA update late yesterday, engineers have still not been able to recover the Maven Mars orbiter since all communications ceased suddenly on December 6, and are now facing a month-long period when the Sun will block all communications with Mars entirely.

The MAVEN team also continues to analyze tracking data fragments recovered from a Dec. 6 radio science campaign. This information is being used to create a timeline of possible events and identify likely root cause of the issue. As part of that effort, on Dec. 16 and 20, NASA’s Curiosity team used the rover’s Mastcam instrument in an attempt to image MAVEN’s reference orbit, but MAVEN was not detected. Additional analysis will continue, but planned monitoring will be affected by the upcoming solar conjunction.

Mars solar conjunction – a period when Mars and Earth are on opposite sides of the Sun – begins Monday, Dec. 29, and NASA will not have contact with any Mars missions until Friday, Jan. 16. Once the solar conjunction window is over, NASA plans to resume its efforts to reestablish communications with MAVEN.

That December 6th tracking data had suggested the spacecraft was tumbling. Though NASA management has not yet given up hope, the longer the spacecraft remains out of touch and in an uncontrolled state, the less chance there will be for it to survive. Batteries will drain, equipment will freeze, and the spacecraft will die. Right now, that appears to be its fate.

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India launches AST SpaceMobile’s sixth Bluebird satellite

8:39 pm

India’s space agency ISRO today (December 24 in India) successfully launched AST SpaceMobile’s sixth Bluebird satellite into orbit, its Bahubali rocket (LVM3) lifting off from its Sriharikota spaceport on India’s eastern coast.

This Bluebird is an upgrade from the first five satellites, providing ten times the bandwidth. The constellation acts as satellite cell towers for smart phones. These Bluebird satellites have been the largest in size ever launched, and this satellite will break their previous records. It is also the heaviest satellite India’s Bahubali rocket has ever put in orbit, on its sixth launch.

For India, this is its fourth launch in 2025. The leaders in the 2025 launch race:

168 SpaceX
86 China
18 Rocket Lab
15 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 144.

2 comments

December 23, 2025 Quick space links

2:48 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.

4 comments

Hubble images gigantic protoplanetary disk

10:20 am

Largest known protoplanetary disk
Click for original image.

Cool image time! The picture to the right, rotated, cropped, and reduced to post here, was taken by the Hubble Space Telescope on February 8, 2025, and shows what scientists believe is the largest protoplanetary disk so far measured.

Located roughly 1,000 light-years from Earth, IRAS 23077+6707, nicknamed “Dracula’s Chivito,” spans nearly 400 billion miles — 40 times the diameter of our solar system to the outer edge of the Kuiper Belt of cometary bodies. The disk obscures the young star within it, which scientists believe may be either a hot, massive star, or a pair of stars. And the enormous disk is not only the largest known planet-forming disk; it’s also shaping up to be one of the most unusual.

…The impressive height of these features wasn’t the only thing that captured the attention of scientists. The new images revealed that vertically imposing filament-like features appear on just one side of the disk, while the other side appears to have a sharp edge and no visible filaments. This peculiar, lopsided structure suggests that dynamic processes, like the recent infall of dust and gas, or interactions with its surroundings, are shaping the disk.

You can read the peer-reviewed paper here [pdf]. The structure of this system has left them with more questions than answers. They can’t see the central star due to the dust. They don’t know if any planets exist as yet in the system. They don’t really understand the structural details that they can see.

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Starlink added a million new customers in just the past month

9:58 am

According to a tweet by SpaceX yesterday, Starlink now has nine million active customers in 155 countries worldwide.

These numbers tell us the company is now getting more than a billion dollars per month in revenues, based on what it charges for its various plans. What make the numbers even more startling is how fast they are growing.

In a similar post from November 5, SpaceX said Starlink had 8 million customers, meaning that its customer base has expanded at a rate of more than 20,000 per day since that date.

At more than billion dollars per month, SpaceX essentially has about half the annual revenue of NASA, which it can use far more efficiently. And those numbers will only increase in the coming years, as the company opens up new markets worldwide and begins launching its upgraded Starlink satellites with Starship.

It still seems to me puzzling why, with these numbers, Musk is considering making the company public this coming summer. Though that move would bring in a gigantic amount of new investment capital from the stock sale, it would also subject the company to serious government regulation as a publicly-traded company. The Starlink revenue can only grow. Why add government interference when you can live without it?

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JAXA identifies cause of H3 rocket failure

9:44 am

In releasing today the preliminary results of its investigation into the failure on December 21, 2025 of the upper stage of its H3 rocket, Japan’s space agency pinned the likely cause on the rocket’s fairings.

Japan Aerospace Exploration Agency officials told a science ministry panel on Dec. 23 they suspect an abnormal separation of the rocket’s payload fairing—a protective nose cone shield—caused a critical drop in pressure in the second-stage engine’s hydrogen tank.

Engineers think the fairing might have hit the rocket at separation, damaging the tank.

Japan at present has no way to launch payloads. It has no operating independent commercial rocket companies, and its JAXA-owned H3 and Epsilon-S rockets have had repeated problems. The H3 failed on its first launch in 2023, causing a year-long delay, and Epsilon-S still in limbo because of repeated failures during development.

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No contact with Mars’ rovers for the next month

9:21 am

The Sun is about going to cause a month-long break in communications with Curiosity and Perseverance, the two rovers on Mars.

This communications pause occurs every two years, when the orbits of Earth and Mars align with the Sun in between.

his holiday season coincides with conjunction — every two years, because of their different orbits, Earth and Mars are obstructed from one another by the Sun; this one will last from Dec. 27 to Jan. 20. We do not like to send commands through the Sun in case they get scrambled, so we have been finishing up a few last scientific observations before preparing Curiosity for its quiet conjunction break.

This is not a unique situation. Both rovers have gone through conjunction several times previously. The science teams will place the rovers in secure positions to hold them over during the break.

As for the orbiters circling Mars, it isn’t clear how much their operations will be impacted. The update at the link above makes no mention of them, and my memory says communications with them is less hampered, though reduced somewhat.

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China’s Long March 12A launches but fails to land the first stage

9:21 pm

China’s new Long March 12A reusable rocket completed its first launch today (December 23 in China), lifting off from the Jiuquan space spaceport in northwest China. The attempt to softly land the first stage vertically at a landing pad down range however failed.

According to one report, the rocket’s upper stage reached orbit, but this remains unconfirmed. A Google-translation of this Chinese state-run report confirmed the failure of the first stage:

The rocket lifted off successfully after ignition, and its flight appeared normal during the visual observation phase. However, reports from the recovery site indicated an anomaly during the first stage’s re-entry, resulting in a “mushroom cloud” formation, and the successful recovery of the first stage was not achieved.

Several Chinese outlets showed the same image of that cloud. This is the second unsuccessful attempt by China this month to land a first stage, the first being the December 2nd attempt by the Chinese pseudo-company Landspace’s Zhuque-3 rocket. The Long March 12A is built by the government, so there is no make-believe company involved.

UPDATE: China’s state-run press has confirmed the upper stage reached orbit.

The leaders in the 2025 launch race:

168 SpaceX
86 China (a new record)
18 Rocket Lab
15 Russia

SpaceX still leads the rest of the world in successful launches, 168 to 143.

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