Image (Credit): Hubble Space Telescope image of NGC 3137, located 53 million light-years away. (ESA/Hubble & NASA, D. Thilker and the PHANGS-HST Team
This week’s image is from the Hubble Space Telescope. It shows spiral galaxy NGC 3137 in all its glory. We are getting a nice inclined view of the galaxy, allowing us to see multiple arms of stars.
A spiral galaxy seen close up and tilted at an angle, so that its disc fills the view from corner to corner. Its disc is yellow near to the centre and pale blue farther out, showing cooler and hotter stars, respectively. Thin brown clouds of dust, glowing pink spots of star formation, and sparkling blue patches filled with star clusters swirl through the galaxy. Behind it, small orange dots are very distant galaxies.
We are only one month away from the premiere of Apple TV’s Star City.
Premiering on May 29th, the series is a spin-off from For All Mankind, which is an alternative history showing the race to the Moon and then Mars among the Americans, Soviet, and North Koreans. Star City will focus on the Soviet program, just as For All Mankind focused primarily on the American program.
Apple TV describes the new series in this way:
A bold new chapter inspired by the critically acclaimed space-race drama, “For All Mankind,” “Star City” is a propulsive paranoid thriller that takes us back to the key moment in the alt-history retelling of the space race — when the Soviet Union became the first nation to put a man on the moon. But this time, we explore the story from behind the Iron Curtain, showing the lives of the cosmonauts, the engineers and the intelligence officers embedded among them in the Soviet space program, and the risks they all took to propel humankind forward.
While For All Mankind was mostly a bombastic show with plenty of American daredevil fun, the Star City promises to be a much darker view of another space program that we only saw in quick glimpses during the first series. Keeping the show interesting and not too bleak may be a challenge.
Will we ever see another spin-off covering the North Korean version of the space race? It is doubtful, yet it would be both fascinating and bleak as well.
I imagine Star City can be a stand-alone series for those who missed For All Mankind, but I think half the fun in watching the new series will be watching where the two stories interweave and discovering what was really happening on the Soviet side.
If history has multiple perspectives, even alternative history, then I look forward to understanding more of the story through more voices.
Image (Credit): Artist’s rendering of the GALEX space telescope orbiting Earth. (NASA/JPL-Caltech)
On this day in 2003, NASA air-launched the Galaxy Evolution Explorer (GALEX) via a Pegasus launch vehicle. It was an active orbiting space telescope for the next nine years, observing the universe in ultraviolet wavelengths to learn more about star formation in the universe.
The “Kakushin Rising” mission lifted off from Rocket Lab Launch Complex 1 in New Zealand at 3:09 p.m. NZT to successfully deploy eight spacecraft for JAXA’s Innovative Satellite Technology Demonstration Program that included educational small sats, an ocean-monitoring satellite, a demonstration satellite for ultra-small multispectral cameras, and a deployable antenna packed tightly using origami folding techniques that can unfurl up to 25 times its size. “Kakushin Rising” builds on the success of Rocket Lab’s first dedicated launch for JAXA that took place in December 2025, which saw Electron deploy the RAISE-4 spacecraft that demonstrated new aerospace technologies developed by several companies, universities, and research institutions throughout Japan.
The uncrewed Roscosmos Progress 95 spacecraft docked to the aft port of the International Space Station’s Zvezda module at 8 p.m. EDT Monday. The spacecraft is delivering about three tons of food, fuel, and supplies for the Expedition 74 crew. It will remain docked to the orbiting laboratory for about six months before departing for a planned destructive re-entry into Earth’s atmosphere to dispose of trash loaded by the crew.
New observations of the interstellar comet 3I/ATLAS include the first measurement of the abundance of deuterated water relative to ordinary water in an interstellar object. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) discovered that the interstellar comet 3I/ATLAS is made of an astonishingly high ratio of semi-heavy water relative to water, indicating that its system of origin likely formed under conditions far colder than our own.
The Astrophysical Journal Letters abstract of study findings:
With JWST, we are directly imaging cold (∼200–300 K) solar-age giant exoplanets for the first time. At these temperatures, many molecular features appear, and water-ice clouds may condense and affect the emission spectrum; early photometric measurements of cold giant planets are already showing some tension with the predictions of cloud-free solar-metallicity atmosphere models. Here, we present new JWST/MIRI coronagraphic observations of the cold giant exoplanet Eps Ind Ab at 11.3 μm. Together with archival data, we use these new observations to study the atmosphere of this cold exoplanet, and we also refit its orbit, finding an updated mass of 7.6 ± 0.7MJup and an eccentricity of 0.24 +0.11/-0.08. The planet is significantly brighter (by 0.88 ± 0.08 mag) at 11.3 μm than at 10.6 μm, indicating the presence of ammonia. However, this ammonia feature is shallower than expected. This could indicate a low-metallicity or nitrogen-depleted atmosphere, but our preferred explanation is the presence of thick water-ice clouds that suppress the ammonia feature and the near-IR emission of Eps Ind Ab. Photometry of the small but growing sample of cold giant exoplanets demonstrates that they are consistently fainter than expected between 3 and 5 μm, consistent with the water-ice cloud hypothesis. 10.6 μm and 11.3 μm photometry of this cold exoplanet sample would be valuable to determine whether the suppressed ammonia feature is universal, and to frame a new open question about the underlying physical cause.
Citation: Elisabeth C. Matthews et al. a second visit to eps ind ab with JWST: new photometry confirms ammonia and suggests thick clouds in the exoplanet atmosphere of the closest super-Jupiter, ApJL 1002 L5 (2026).
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