Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. Approximately 160 million light years from Earth, the pair is the nearest known such phenomenon.
Over fifty years ago, a supernova was discovered in M83, a spiral galaxy about 15 million light years from Earth. Astronomers have used NASA’s Chandra X-ray Observatory to make the first detection of X-rays emitted by the debris fro... Read Post
For a decade, NASA's Chandra X-ray Observatory has observed the Andromeda Galaxy for a combined total of nearly one million seconds, giving astronomers an unprecedented view of the nearest supermassive black hole outside the Milky W... Read Post
Results from NASA's Chandra X-ray Observatory and the Magellan telescopes suggest that a dense stellar remnant was ripped apart by a black hole a thousand times as massive as the Sun in NGC 1399, an elliptical galaxy about 65 millio... Read Post