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Space Daily

Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.

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Space Daily
spacedaily.com > t-sagan-salpeter-jupiter-sinkers-floaters-hunters-aerial-ecosystem

In 1976, Carl Sagan and astrophysicist Edwin Salpeter published a peer-reviewed paper proposing that Jupiter's atmosphere might support an entire aerial ecosystem — sinking microorganisms, buoyant “floaters” potentially kilometres across, and mobile “hunters” that preyed on them — living their entire lives in a world with no solid surface below.

3+ week, 3+ day ago   (1301+ words) Sagan and Salpeter's 1976 Jovian ecology was a calculation, not a claim of discovery: could airborne organisms grow, reproduce and control buoyancy before fatal descent? By Life Signs · Edited by Lachlan Brown Published August 19, 2026 · How we edit Carl Sagan and Edwin…...