In-Depth Look At Theories About Tabby's Star Observed By the Kepler Space Observatory --Megastructure or Natural Phenomena? (WATCH Today's 'Galaxy' Stream)

Star KIC 8462852--"Tabby's Star" named after its discoverer and Kepler astronomer, Tabetha Boyajian---is emitting a transit signature that defies explanation. The luminosity of a star declines at a consistent rate when a planet passes in front, but not Tabby's star...