Embedded below the fold in two parts.
To listen to all of John Batchelor’s podcasts, go here.
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A evening pause: As Hartley says in describing how this classic song was created, “But they kept it so simple.” After watching the video below I think you will want to go back to yesterday’s pause and listen again.
May everyone have a great weekend.
Hat tip Cotour.
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.
Click for full resolution. Original images can be found here and here.
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.
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.
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.
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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.
Click for original.
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.
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.
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.
An evening pause: I normally don’t post pauses that are not live and have no visuals, such as this one. However, in this case I have reasons for using this original recording of this wonderful song, which will become evident in tomorrow’s evening pause.
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 4th flight, landing on a drone ship in the Pacific.
The leaders in the 2025 launch race:
159 SpaceX (a new record)
75 China
15 Rocket Lab
15 Russia
SpaceX now leads the rest of the world in successful launches, 159 to 127.
It turns out that one week after a judge approved a plea deal in early November between Boeing and the Justice Department that would allows the company to avoid a criminal prosecution for its malfeasance and fraud that led to two 737-Max airplane crashes that killed a total of 346 people — thus dismissing the pending criminal charges — the families of the victims filed an appeal, asking a higher court to overturn that deal.
The families had argued before U.S. District Court Judge Reed O’Connor that the Department of Justice’s (DOJ) non-prosecution agreement violated the judicial review provisions, which was reached behind closed doors without the families’ statutory right to confer. The writ of mandamus argues that no substantive proceedings before Judge O’Connor were held before he made his decision in favor of Boeing.
…DOJ initially presented Judge O’Connor with a non-prosecution agreement (NPA) that he rejected. Instead of coming back with something more stringent, DOJ presented Boeing with the lesser punishment of an NPA in which Boeing would merely pay a $243.6 million penalty, give $444.5 million to be divided amongst the 346 families, and make additional investments in its safety and compliance. In exchange, the DOJ agreed to dismiss the criminal charge against Boeing. On November 6, Judge O’Connor approved this revised NPA and granted the government’s motion to dismiss.
The families now look forward to the Fifth Circuit Court of Appeals to reverse this decision through its writ of mandamus. In the writ, Paul Cassell, pro bono, attorneys for the families and professor of the S.J. Quinney College of Law at the University of Utah, argued on behalf of the families’ that the government’s NPA with Boeing would not provide sufficient oversight of Boeing and failed to account for the fact that Boeing’s criminal behavior was found to have caused the deaths of 346 crash victims. Boeing’s CEO and its lawyers had admitted to the fraud in a guilty plea issued four years ago.
In 2021 Boeing itself pleaded guilty to malfeasance and corruption charges, and was given three years to clean up its act or face criminal prosecution. When after three years Justice found Boeing had instead lied to it while doing little to fix things, it first proceeded with prosecution, only to suddenly back off and make this plea deal.
Thus, the families’ case is strong. Boeing is an admitted criminal and has also done nothing to change its behavior. Whether the families can get the plea deal overturned, however, remains unknown. The legal system no longer can be trusted when it comes to big government contractors like Boeing. The government acts routinely to protect them (as Justice is doing here), and thus there will be heavy political pressure on the courts to turn down this appeal.
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.
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.
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Click for original movie.
Using a new instrument on the Subaru Telescope in Hawaii astronomers have not only discovered a massive exoplanet orbiting a star, they have been able to actually photograph the planet itself.
The arrow in the picture to the right shows that planet. That picture is a screen capture from a short movie complied from five observations taken over several months earlier this year, showing the planet as it orbited the star, the light of which is blocked out so as to not blind the camera. From the press release:
The newly discovered planet, HIP 54515 b, orbits a star 271 light-years away in the constellation Leo. With nearly 18 times Jupiter’s mass, it circles its star at about Neptune’s distance from our Sun. But the star and planet appear very close when seen from Earth; roughly the size that a baseball seen 100 km away would appear. The SCExAO system produced extremely sharp images allowing us to see the planet.
The astronomers also used this new instrument to image a brown dwarf star with a mass equivalent to sixty Jupiters about 169 light years away.
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.
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Embedded below the fold in two parts.
To listen to all of John Batchelor’s podcasts, go here.
» Read more
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.
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.
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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).
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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).
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.
Click for original
Using a new instrument on the Very Large Telescope (VLT) in Chile, astronomers have compiled a catalog of 51 potential exoplanet solar systems, all with intriguing debris disks surround the stars with features suggesting the existence of asteroids and comets.
The image to the right shows a sampling of those systems. From the press release:
“To obtain this collection, we processed data from observations of 161 nearby young stars whose infrared emission strongly indicates the presence of a debris disk,” says Natalia Engler (ETH Zurich), the lead author of the study. “The resulting images show 51 debris disks with a variety of properties — some smaller, some larger, some seen from the side and some nearly face-on – and a considerable diversity of disk structures. Four of the disks had never been imaged before.”
Comparisons within a larger sample are crucial for discovering the systematics behind object properties. In this case, an analysis of the 51 debris disks and their stars confirmed several systematic trends: When a young star is more massive, its debris disk tends to have more mass as well. The same is true for debris disks where the majority of the material is located at a greater distance from the central star.
Arguably the most interesting feature of the SPHERE debris disks are the structures within the disks themselves. In many of the images, disks have a concentric ring- or band-like structure, with disk material predominantly found at specific distances from the central star. The distribution of small bodies in our own solar system has a similar structure, with small bodies concentrated in the asteroid belt (asteroids) and the Kuiper belt (comets).
The data from various telescopes both on the ground and in space is increasingly telling us that our solar system is not unique, and that the galaxy is filled with millions of similar systems, all in different states of formation. This hypothesis is further strengthened by the appearance of interstellar comet 3I/Atlas, which despite coming from outside our solar system is remarkably similar to the comets formed here.
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.
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.
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.
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.
