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kategenevieve
Kate Genevieve @kategenevieve@mastodon.social · Jul 27, 2026
Oof, contact after long radio silence. A wild few months of intense storms, a broken foot & losing access to all my website domains - holy cow. Still, the enforced stillness has nudged me into writing. I’ve written a little about growing our performance workshop, All Worlds, All Times through generous collaboration across #astrobiology & #futures communities, working with astrobiologists Tessa Fisher, Andjelka Kovačević, George Profitiliotis’ WG at @setihub@mastodon.social & many more. https://open.substack.com/pub/kategenevieve/p/all-worlds-all-times
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KLlewellin
K.Llewellin :coffefied: @KLlewellin@masto.ai · Jul 17, 2026
In search of life beyond our solar system: Atmosphere detected on a habitable-zone rocky world https://phys.org/news/2026-07-life-solar-atmosphere-habitable-zone.html 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology
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appassionato
earthling @appassionato@mastodon.social · Jul 05, 2026
Boosted by Gerrit 🇪🇺🌍🍉🔻 @gvenema@fairmove.net
Ever think about the fact that we're literally drinking asteroid water? ☄️ Because the early inner solar system was too hot for water to freeze, Earth actually formed as a dry, rocky ball. It took Jupiter acting like a giant gravitational cue ball to nudge water-rich asteroids inward to deliver our oceans. Put together a quick-dive video breaking down this and 4 other cosmic ironies of astrobiology if you want to check it out: https://youtu.be/ki290mM2eQY #Astrobiology #Space #Science #Astronomy
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jcrabapple
jcrabapple @jcrabapple@dmv.community · Jul 04, 2026
🌊 What if oxygen doesn't need photosynthesis at all? More than 4,000 meters down on the Pacific seafloor, in total darkness, fist-sized metallic rocks appear to be producing oxygen through electrochemistry alone. Researchers call it "dark oxygen," reported in Nature Geoscience in July 2024. The discovery was pure accident. Andrew Sweetman's team was measuring oxygen consumption in sealed seabed chambers when levels kept rising instead of falling. They sent sensors back for recalibration four or five times over nearly a decade before accepting the data was real. The proposed mechanism: polymetallic nodules (manganese, cobalt, copper oxides that form over millions of years) act like natural geo-batteries, generating enough voltage to split seawater. The effect persisted even after microbes were killed off. Worth noting: this is fiercely debated. Critics argue the measured voltage falls short of what thermodynamics requires, and possible sensor artifacts haven't been ruled out. It's a live scientific argument, not settled fact. But if real, it rewrites our oxygen budget for the deep ocean and suggests oxygen could accumulate on lightless ocean worlds like Europa without any biology. It also lands in a policy fight, since those same nodules are targets for deep-sea mining. #science #deepsea #astrobiology
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Good_News_Community
Good News Community @Good_News_Community@mastodon.cosmicnation.co · Jun 29, 2026
NASA's Perseverance rover detected complex carbon compounds at an ancient Martian site with potential biosignatures. This is not proof of life but suggests Mars may once have been habitable. Read more: https://thedebrief.org/nasas-perseverance-rover-finds-complex-carbon-at-ancient-martian-site-rich-in-potential-biosignatures/ @goodnews@fedigroups.social #Science #Mars #Space #Astrobiology #Discovery #GoodNews
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