Using four of the world’s most powerful telescopes, astronomers have found a bizarrely magnetic star with some very strange features. The M-type dwarf has a massive “hot spot”, which covers half of its surface area, and an unusually active magnetic field. The star lies about 35 light-years away in the constellation Boötes. If these strange anomalies turn out to be common for M-type stars, astronomers will have a radically altered view of the ultracool dwarfs.

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