Scientists discover cosmic fossil created by the eruption of a supermassive black hole
NASA scientists have spotted a stunning cosmic fossil that was formed when a supermassive black hole erupted more than 5 million years ago. The team at the space agency’s Goddard Space Flight Center used the X-ray Multi-Mirror Mission (XMM-Newton) space telescope with help from NASA’s Chandra X-ray Observatory to spot the X-rays that outline cold … Read more