Panspermia Under Scrutiny: Debates, Evidence, and the Search for Cosmic Life

To the point

Panspermia is the idea that life on Earth may come from space, but it remains unproven and debated, with Fred Hoyle and Chandra Wickramasinghe arguing for cosmic seeding and William Leving and J. William Schopf urging rigorous testing, and even if life travels between worlds, extraordinary evidence and flexible metabolisms would be needed.

Are We from Outer Space? A Critical Review of the Panspermia Hypothesis
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Are We from Outer Space? A Critical Review of the Panspermia Hypothesis

The biological record suggests that life on Earth arose as soon as conditions were favorable, which indicates that life either originated quickly, or arrived from elsewhere to seed Earth. Experimental research under the theme of “astrobiology” has ...