[math-fun] Comet hit Libya 28.5 Myr ago
8 Oct
2013
8 Oct
'13
2:12 p.m.
http://www.sciencedirect.com/science/article/pii/S0012821X13004998 seems convincing evidence they actually found a piece of the comet that did it. -- Warren D. Smith http://RangeVoting.org <-- add your endorsement (by clicking "endorse" as 1st step)
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Warren D Smith