Impact Models Challenge a Cometary Source for Life's Precursors
The findings concern the delivery of a chemical, not direct evidence of life elsewhere.
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Source: University of Cambridge, via Brightsurf, 2026-10-28.
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Explain the difference between the simulation result and a claim that comet delivery never happened.
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The simulations suggest useful intact delivery was uncommon because molecules might be destroyed or diluted. They challenge the proposed route but do not prove that no comet ever delivered such material.
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