'House of Lost Worlds' pays homage to Yale’s Peabody Museum of Natural History and to the colorful scientists who made the museum great.
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Researchers are coming up with creative ways to pick up biosignatures in far-away planetary atmospheres.
Desert varnish and certain minerals hint that life — here and elsewhere — may defy current criteria.
Geoscientists imagine the unearthly mechanisms that could keep alien planets habitable.