For the first time, NASA Chandra X-ray telescope has been used to discover a pair of black holes in dwarf galaxies that are on a collision course. The Chandra team explains. Credit: NASA/CXC/A. Hobart ...
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In a groundbreaking discovery, astronomers have identified two pairs of supermassive black holes on the brink of merging, an event never observed before in the cosmos. NASA’s Chandra X-ray Observatory ...