The New Yorkerのインスタグラム(newyorkermag) - 1月22日 03時45分

Somewhere between 1.5 billion and 2.4 billion planets in our galaxy could, in theory, harbor life. As disconcerting as encountering intelligent aliens would be, the fact that we haven’t yet heard from any is, arguably, even more so. Is it possible that extraterrestrials, wary of our destructive impulses, have decided not to make contact? Or could they have already annihilated themselves? At the link in our bio, Elizabeth Kolbert writes about two new books that insist we aren’t alone in the universe. Illustration by @psahre.

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