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Reply to post: Hydrogen band

Fermi famously asked: 'Where is everybody?' Probably dead, says renewed Drake equation

PerlyKing
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Hydrogen band

@tiggity: "who's to say our Hydrogen band 21 guess of where to look for signals would make sense to an alien?"

Mostly physics. See http://www.setileague.org/askdr/beyond_h.htm for an explanation.

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