Life & Consciousness
Panspermia
Proposes that life, or its chemical precursors, did not originate on Earth but arrived from elsewhere in space via comets, meteorites, or interstellar dust.
Proponents
Svante Arrhenius, Fred Hoyle, Chandra Wickramasinghe
Evidence For
Amino acids and other organic compounds have been detected in meteorites and comets, showing such molecules can survive interstellar transit.
Evidence Against
Does not itself explain how life first originated, only relocates the question; surviving atmospheric entry intact remains a significant hurdle for anything more complex than simple molecules.
Real Sources
Transmissions
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