(Q5167379)
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Wikipedia(3 entries)
- enwiki Cool early Earth
- frwiki Terre primitive froide
- zhwiki 涼爽早期地球
hypothesis which posits that for part of the Hadean eon, at the beginning of Earth's history (after the extreme conditions of 4.5±0.1 Ga ago, but before the LHB of 3.95±0.15 Ga ago), it had a modest bolide count and was cool, allowing liquid water