Source: National Geographic/Andrew Fazekas
Artist's impression of a star's accretion made by a black hole.
Image credits: Mark A. Garlick, University of Warwick
A huge "belch" of radiation from a supermassive black hole indicates that the cosmic monster recently devoured a star, scientists say.
Earlier this year astronomers spied a burst of high-energy gamma rays emanating from the center of a dwarf galaxy 3.8 billion light-years away. The odd flash, dubbed Sw 1644+57, is one is the brightest and longest gamma ray bursts (GRBs) yet seen. (read more)