
Why alien ‘megastructures’ may hold key to making contact with extraterrestrials
April 20, 2019, 5:00 AM CDT By Seth Shostak If you’re trying to come up with the best game plan for proving the existence […]
April 20, 2019, 5:00 AM CDT By Seth Shostak If you’re trying to come up with the best game plan for proving the existence […]
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