Maybe E.T. has just been waiting for an invitation. That potential solution to the Fermi Paradox is getting a test this week, with the debut of a suite of "cosmic welcome mats" designed to let ...
Maybe E.T. has just been waiting for an invitation. That potential solution to the Fermi Paradox is getting a test this week, with the debut of a suite of "cosmic welcome mats" designed to let ...
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