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#astrobiology

22 posts · Last used 11d

Kate Genevieve @kategenevieve@mastodon.social
· 2mo ago
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
open.substack.com
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Bytes Europe @byteseu@pubeurope.com
· 2mo ago
Action! NSF–DOE Vera C. Rubin Observatory Begins Capturing the Greatest Cosmic Movie Ever Made https://www.byteseu.com/2225170/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
Action! NSF–DOE Vera C. Rubin Observatory Begins Capturing the Greatest Cosmic Movie Ever Made - Bytes Europe
Bytes Europe

Action! NSF–DOE Vera C. Rubin Observatory Begins Capturing the Greatest Cosmic Movie Ever Made - Bytes Europe

Action! NSF–DOE Vera C. Rubin Observatory Begins Capturing the Greatest Cosmic Movie Ever Made

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Quanta Magazine @quanta@robot.villas
· 3mo ago
Will We Ever Find Alien Civilizations? https://www.quantamagazine.org/will-we-ever-find-alien-civilizations-20260709/ #Science #Astrobiology #Space
Will We Ever Find Alien Civilizations? | Quanta Magazine
Quanta Magazine

Will We Ever Find Alien Civilizations? | Quanta Magazine

Astronomer David Kipping discusses why claims of extraterrestrial life keep dissolving under scrutiny, why we need a more statistically grounded approach to searching for life beyond Earth, and why it’s rational to believe that we may be alone.

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earthling @appassionato@mastodon.social
· 3mo ago
Boosted by @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@dmv.community
· 3mo ago
🌊 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@mastodon.cosmicnation.co
· 3mo ago
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
NASA’s Perseverance Rover Finds Complex Carbon at Ancient Martian Site Rich in Potential Biosignatures
The Debrief

NASA’s Perseverance Rover Finds Complex Carbon at Ancient Martian Site Rich in Potential Biosignatures

Evidence for possible life on Mars in the ancient past continues to build, thanks to a recent discovery by NASA’s Perseverance rover.

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