Have Astronomers Discovered an Alien Megastructure?

Have astronomers discovered an alien megastructure?
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Astronomers have spotted an object in space that blocks a surprising amount of sunlight, leading to speculation it could be a massive structure built by aliens. CBS News science contributor Michio Kaku spoke to CBSN about the enormous discovery.

CBSN

See more about this here: Have astronomers discovered an alien megastructure?


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