It’s Probably Not Aliens

(Slate::Bad Astronomy) – Phil Plait:

Just when you think Tabby’s Star can’t get any weirder, it goes and does.

You know this star: It undergoes very odd dips in brightness that have defied explanation.

But Tabby’s Star isn’t behaving itself. Instead of a smooth dip and subsequent rise in brightness indicating a planet, it suffers non-periodic, asymmetric, and very deep dips in brightness. This is not at all what you expect from a planet. Ideas including shattered asteroids and swarms of comets explain some but not all of the dips. …

bad_astronomy 2016/08/10 tabby

Tabby's star KIC 8462852

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