Chandra X-ray Observatory, U.S. satellite, one of the National Aeronautics and Space Administration (NASA) fleet of “Great Observatories” satellites, which is designed to make high-resolution images of celestial X-ray sources. It has been in operation since 1999.
Giant space doughnut? NASA captures Crab Nebula in new light miamiherald.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miamiherald.com Daily Mail and Mail on Sunday newspapers.