House: Mysterious dimming of a distant star could also be from shape-shifting mud

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The TIC 400799224 stellar system, home to mysterious events

DECaPS; Schlafly et al. 2018

Around a star about 2300 light years away, something strange is happening. An object is circling the star and blocking out light, but the size and shape of this entity appear to be constantly changing and astronomers don’t know what it is.

Brian Powell at NASA’s Goddard Space Flight Center in Maryland and his colleagues spotted an odd pattern in the light from a binary star system called TIC 400799224 using the Transiting Exoplanet Survey Satellite. They found that about once every …

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