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Mark McCaughreanIf you have a penchant for podcasts, you might want to take a listen to the latest one on Planetary Radio, from the fine folk at The Planetary Society 📻I had a great chat with the lovely Sarah Al-Ahmed about my book "111 Places in Space That You Must Not Miss", & much else 📖The podcast is available on their website, & as a reminder, the book itself is now on sale in Europe, the UK, & North America 🙇‍♂️<a href="https://www.planetary.org/planetary-radio/2025-111-places-in-space" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.planetary.org/planetary-radio/2025-111-places-in-space</a><a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Space</a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.social/tags/111PlacesinSpace" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#111PlacesinSpace</a> 🚀🛰️🪐✨

The-14Earth’s inner core: nobody knows exactly what it’s made of – now we’ve started to uncover the truth <a href="https://mastodon.world/tags/EarthCore" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EarthCore</a> <a href="https://mastodon.world/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Geology</a> <a href="https://mastodon.world/tags/EarthScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#EarthScience</a> <a href="https://mastodon.world/tags/PlanetaryScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PlanetaryScience</a> <a href="https://mastodon.world/tags/Meteorites" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Meteorites</a> <a href="https://mastodon.world/tags/Seismology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Seismology</a> <a href="https://mastodon.world/tags/InnerCore" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#InnerCore</a> <a href="https://mastodon.world/tags/Geophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Geophysics</a> <a href="https://mastodon.world/tags/Research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Research</a> <a href="https://mastodon.world/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.world/tags/ClimateAndEarth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ClimateAndEarth</a> <a href="https://the-14.com/earths-inner-core-nobody-knows-exactly-what-its-made-of-now-weve-started-to-uncover-the-truth/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://the-14.com/earths-inner-core-nobody-knows-exactly-what-its-made-of-now-weve-started-to-uncover-the-truth/</a>

Good News Community🌌🔭 Black hole breakthrough! The clearest merger signal yet, GW250114, confirms Einstein’s relativity and Hawking’s area theorem through gravitational waves. A cosmic “ring” revealing space-time secrets! <a href="https://fedigroups.social/@goodnews" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@goodnews</a> <a href="https://mastodon.cosmicnation.co/tags/GoodNews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GoodNews</a> <a href="https://mastodon.cosmicnation.co/tags/BlackHole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#BlackHole</a> <a href="https://mastodon.cosmicnation.co/tags/Einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Einstein</a> <a href="https://mastodon.cosmicnation.co/tags/Hawking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Hawking</a> <a href="https://mastodon.cosmicnation.co/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://phys.org/news/2025-09-black-hole-einstein-hawking.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://phys.org/news/2025-09-black-hole-einstein-hawking.html</a>

SETI InstituteDr. Chenoa Tremblay is a project scientist at the SETI Institute with joint appointments at Breakthrough Initiatives, the University of New Mexico, and the National Radio Astronomy Observatory. <a href="https://mastodon.social/tags/Astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrobiology</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a> <a href="https://mastodon.social/tags/SometimesAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SometimesAliens</a>

OsakaMaido-2: Osaka’s Lunar Robot Hopes to Leap into the Futureこのページを日本語で読む Higashi-Osaka is a city renowned for its manufacturing. Here, a group of small factories banded together to develop the small sa… <a href="https://channels.im/tags/Japan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Japan</a> <a href="https://channels.im/tags/JP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JP</a> <a href="https://channels.im/tags/Osaka" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Osaka</a> #<a href="https://channels.im/tags/visitjapanjp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#visitjapanjp</a> <a href="https://channels.im/tags/economy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#economy</a>&tech <a href="https://channels.im/tags/editor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#editor</a>&#039;spick <a href="https://channels.im/tags/JAXA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JAXA</a> <a href="https://channels.im/tags/maido" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#maido</a>-2 <a href="https://channels.im/tags/monodzukuri" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#monodzukuri</a> <a href="https://channels.im/tags/osakaexpo2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osakaexpo2025</a> <a href="https://channels.im/tags/OsakaTopics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OsakaTopics</a> <a href="https://channels.im/tags/robots" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#robots</a> <a href="https://channels.im/tags/smallandmediumenterprises" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#smallandmediumenterprises</a> <a href="https://channels.im/tags/sohla" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sohla</a> <a href="https://channels.im/tags/spaceexploration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spaceexploration</a> <a href="https://channels.im/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://channels.im/tags/%E5%A4%A7%E9%98%AA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#大阪</a> <a href="https://channels.im/tags/%E5%A4%A7%E9%98%AA%E5%BA%9C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#大阪府</a> <a href="https://www.alojapan.com/1364802/maido-2-osakas-lunar-robot-hopes-to-leap-into-the-future/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.alojapan.com/1364802/maido-2-osakas-lunar-robot-hopes-to-leap-into-the-future/</a>

Alo Japan<a href="https://www.alojapan.com/1364802/maido-2-osakas-lunar-robot-hopes-to-leap-into-the-future/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.alojapan.com/1364802/maido-2-osakas-lunar-robot-hopes-to-leap-into-the-future/</a> Maido-2: Osaka’s Lunar Robot Hopes to Leap into the Future #<a href="https://channels.im/tags/visitjapanjp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#visitjapanjp</a> <a href="https://channels.im/tags/Economy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Economy</a>&Tech <a href="https://channels.im/tags/Editor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Editor</a>'sPick <a href="https://channels.im/tags/JAXA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JAXA</a> <a href="https://channels.im/tags/Maido2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Maido2</a> <a href="https://channels.im/tags/monodzukuri" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#monodzukuri</a> <a href="https://channels.im/tags/Osaka" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Osaka</a> <a href="https://channels.im/tags/OsakaExpo2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OsakaExpo2025</a> <a href="https://channels.im/tags/OsakaTopics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OsakaTopics</a> <a href="https://channels.im/tags/robots" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#robots</a> <a href="https://channels.im/tags/SmallAndMediumEnterprises" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SmallAndMediumEnterprises</a> <a href="https://channels.im/tags/sohla" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sohla</a> <a href="https://channels.im/tags/SpaceExploration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceExploration</a> <a href="https://channels.im/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://channels.im/tags/%E5%A4%A7%E9%98%AA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#大阪</a> <a href="https://channels.im/tags/%E5%A4%A7%E9%98%AA%E5%BA%9C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#大阪府</a> このページを日本語で読む Higashi-Osaka is a city renowned for its manufacturing. Here, a group of small factories banded together to develop the small satellite Maido-1, successfully launching i

SETI InstituteData scientist Dr. Joe Twicken’s background is in signal processing. During his career, Dr. Twicken developed and operated science processing pipelines supporting several planetary missions: Magellan, Galileo, Mars Global Surveyor, and Mars Express. <a href="https://mastodon.social/tags/Exoplanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Exoplanets</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

qurlyjoeWon’t happen in my lifetime, but if the human race survives the next decade or so some of you young whippersnappers could be seeing this. <a href="https://mstdn.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://mstdn.social/tags/spaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spaceScience</a> <a href="https://mstdn.social/tags/exoPlanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exoPlanets</a> <a href="https://www.space.com/astronomy/could-a-unique-rectangular-telescope-be-the-key-to-finding-earth-2-0" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.space.com/astronomy/could-a-unique-rectangular-telescope-be-the-key-to-finding-earth-2-0</a>

SETI InstituteDr. Steve Croft is a radio astronomer working on the Breakthrough Listen technosignature search project with UC Berkeley SETI Research Center (BSRC), where he leads Listen's observational program on the 100-meter Green Bank Telescope. <a href="https://mastodon.social/tags/Astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrobiology</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a> <a href="https://mastodon.social/tags/SometimesAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SometimesAliens</a>

Westport Observatory🚨 Mystery from the cosmos: The famous 1977 “Wow!” signal—once hailed as possible proof of aliens—may actually be natural. 🌌Fresh analysis points to high-energy bursts (like from a magnetar) lighting up hydrogen clouds, not ET on the line.The hunt continues… <a href="https://ow.ly/YEzv50WNBsT" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ow.ly/YEzv50WNBsT</a><a href="https://vmst.io/tags/WowSignal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WowSignal</a> <a href="https://vmst.io/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://vmst.io/tags/CosmicMysteries" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CosmicMysteries</a> <a href="https://vmst.io/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://vmst.io/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a>

Dr. Victoria Grinberg‼️ Call open for the <a href="https://mastodon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ESA</a> Research Fellowship in Space ScienceDeadline: 22 SeptemberAreas: all areas covered by the ESA's Directorate of Science missions: heliophysics, planetary science, astrophysics, fundamental physicsLocation: Netherlands (close to Leiden), Spain (close to Madrid) or USA (Baltimore)Who: current PhD holders with up to ~5 years of experience & folks who will obtain their PhD before the start of fellowship in fall 2026▶️ <a href="https://www.cosmos.esa.int/web/space-science-faculty/opportunities/research-fellowships" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.cosmos.esa.int/web/space-science-faculty/opportunities/research-fellowships</a><a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astrodon</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a>

SETI InstituteDr. Franck Marchis is a senior astronomer and Director of Citizen Science at the SETI Institute, Chief Science Officer and co-founder of Unistellar, and co-founder and Chief Executive Officer of SkyMapper. <a href="https://mastodon.social/tags/PlanetaryScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PlanetaryScience</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

SETI InstituteDr. Lori Fenton’s primary research interests include aeolian geomorphology, recent and ongoing climate changes, and the mobility of wind-blown sand and dust. <a href="https://mastodon.social/tags/PlanetaryScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PlanetaryScience</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

:awesome:🐦‍🔥nemo™🐦‍⬛ 🇺🇦Scientists have recorded seismic infrasound from a major earthquake 2022 using balloons in the stratosphere 🌍🎈📡. The study shows balloons can detect quakes & probe planetary interiors remotely—opening doors for future space missions. 🚀 Read more: <a href="https://doi.org/10.1029/2022GL098844" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://doi.org/10.1029/2022GL098844</a> <a href="https://mas.to/tags/Seismology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Seismology</a> <a href="https://mas.to/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mas.to/tags/Earthquakes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Earthquakes</a>

Good News Community🌌 Scientists at the University of Copenhagen are turning the cosmos into a giant particle accelerator to hunt for dark matter! By studying gamma rays from black hole galaxies passing through galaxy clusters, they’ve found hints of axions, a potential key to unlocking the mystery of dark matter. This breakthrough could bring us closer to understanding 80% of the universe’s mass! 🔭 <a href="https://a.gup.pe/u/goodnews" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@goodnews</a> <a href="https://mastodon.cosmicnation.co/tags/GoodNews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GoodNews</a> <a href="https://mastodon.cosmicnation.co/tags/DarkMatter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DarkMatter</a> <a href="https://mastodon.cosmicnation.co/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.cosmicnation.co/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://thedebrief.org/clever-new-trick-uses-the-universe-as-a-gigantic-particle-accelerator-in-the-hunt-for-dark-matter/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://thedebrief.org/clever-new-trick-uses-the-universe-as-a-gigantic-particle-accelerator-in-the-hunt-for-dark-matter/</a>

SETI InstituteDr. Megan Seritan studied lunar paleomagnetism at UC Santa Cruz, focusing on lunar swirls. Two areas with lunar swirls that are of particular interest to Dr. Seritan's work are Reiner Gamma and the Gerasimovich area. <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

SETI InstituteDr. Aaron Wolf’s research interests include planetary science, geochemistry, mineral physics, and statistical analysis. His work primarily focuses on understanding the role of silicate melts in driving the formation and evolution of rocky planets. <a href="https://mastodon.social/tags/Astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrobiology</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

PomarančFrom Voyager 2’s smooth blue-green view in 1986 to Webb’s breathtaking 2023 image, our vision of Uranus has transformed. Keck (2002) revealed faint rings, Hubble (2022) showed brighter tones and weather patterns, and Webb unveiled glowing rings and a luminous atmosphere.<a href="https://mastodon.social/tags/Uranus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Uranus</a> <a href="https://mastodon.social/tags/SpaceExploration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceExploration</a> <a href="https://mastodon.social/tags/Voyager2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Voyager2</a> <a href="https://mastodon.social/tags/KeckObservatory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#KeckObservatory</a> <a href="https://mastodon.social/tags/Hubble" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Hubble</a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JWST</a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.social/tags/OuterPlanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OuterPlanets</a> <a href="https://mastodon.social/tags/IcyGiant" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#IcyGiant</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/PlanetaryScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PlanetaryScience</a>

SETI InstituteDr. Ariel Graykowski is a Postdoctoral Fellow focused on the astronomy of small bodies, working with citizen scientists to monitor cometary activity through the Unistellar Network. She graduated with her PhD in geophysics and space physics from UCLA's EPSS department, where she studied the properties of the irregular satellites of the giant planets as well as fragmenting comets. Learn more: <a href="https://www.seti.org/people/ariel-graykowski/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.seti.org/people/ariel-graykowski/</a> <a href="https://mastodon.social/tags/Astrobiology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astrobiology</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a> <a href="https://mastodon.social/tags/SETI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SETI</a> <a href="https://mastodon.social/tags/NotJustAliens" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NotJustAliens</a>

Mark McCaughreanA fluffy Jupiter orbiting Alpha Centauri A?Chas Beichman & collaborators used JWST to search for planets around the nearest solar analogue star & found a candidate.It may be the same object seen in 2019 with the VLT, & if so, it'd likely be ~1 Jupiter radius & 0.5 Jupiter masses, & about -50ºC. Confirmation needed 👍Have just done a TV interview with Becky Morelle for <a href="https://flipboard.com/@BBCNews" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@BBCNews</a> at 6 & 10, so look out for that later 🙂Full paper: <a href="https://arxiv.org/abs/2508.03814" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://arxiv.org/abs/2508.03814</a><a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://mastodon.social/tags/SpaceScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpaceScience</a>

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