Weird shape-shifting clouds of dust seem to be orbiting a distant star

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Space 14 October 2021

By Leah Crane

Stars imaged by the DECam Plane Survey TIC 400799224 is identified successful  the crosshairs.

The TIC 400799224 stellar system, location to mysterious events

DECaPS; Schlafly et al. 2018

Around a prima astir 2300 airy years away, thing unusual is happening. An entity is circling the prima and blocking retired light, but the size and signifier of this entity look to beryllium perpetually changing and astronomers don’t cognize what it is.

Brian Powell astatine NASA’s Goddard Space Flight Center successful Maryland and his colleagues spotted an unusual signifier successful the airy from a binary prima strategy called TIC 400799224 utilizing the Transiting Exoplanet Survey Satellite. They recovered that astir erstwhile each …

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