The Optical Monitor telescope onboard XMM-Newton has obtained one of the most striking ultraviolet pictures ever taken of the ‘LINER’ galaxy M81. Strong ultraviolet (UV) emission is a feature of star ...
Astronomers have watched a supermassive black hole take two bites of a star, and predicted when it might go back for a third. If it does, this should make for an intriguing stellar light show. Black ...
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