Astronomers Find Clue to How Supermassive Black Holes Emit X-ray Flares

In 2014, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the agency’s Swift satellite observed an X-flare from the supermassive black hole in Markarian 335, a galaxy located 324 million light-years away in the constellation Pegasus. The observations allowed astronomers to link a shifting corona to an X-ray flare for the first time. According to the [...] —> Read More