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It turns out that Tabby’s Star — the star that has been hypothesized to have an alien megastructure around it — is not alone when it comes to wild fluctuations in its light output. Astronomers at Germany’s Max Planck Institute for Extraterrestrial Physics have found yet another star that experiences its own drops in brightness, although this one may offer a clue as to why it appears to periodically flicker out.
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Last October, researchers with the Kepler Planet Hunters program announced the discovery of unusual patterns in the light output of a star indexed as KIC 8462852, patterns that could only be explained by massive objects in orbit around the star, blocking a significant portion of its light. While many theories were put forward to explain the phenomenon, ranging from proto-planetary debris to massive comets, all of the explanations failed to fit what was being observed — except for the otherwise controversial idea that the light might be blocked by massive alien artifacts.
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