Was life on the early Earth purple?
15 Oct 2018, 15:13 UTC
(200 words excerpt, click title or image to see full post)
A purple-pigmented molecule could have been the first to turn sunlight into metabolic energy.
FEATURED IMAGE: 6 Apr 2021, 12:38 UTC | Hubble Spots Double Quasars in Merging Galaxies
10 April 2021, 3:09:32UTC
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