Uploaded February 2017 | Updated September 2026, 2 weeks ago

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When astronomers noticed the erratic flickering of KIC 8462852 in 2015, the little-known star became our new planetary obsession – could an alien megastructure be surrounding Tabby's Star?

NASA’s Kepler Mission proved that whatever was making the planet star dim uncontrollably could not have been a planet as we know it. Astronomers have increasingly accepted the possibility of a Dyson sphere, but the truth about the star remains a mystery.

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