NASA's X-ray telescopes stumble over evidence of wandering black hole! - See pic
The astronomers used NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton X-ray observatory to discover this source.
Oct 06, 2016, 11:11 AM IST
The astronomers used NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton X-ray observatory to discover this source.
Oct 06, 2016, 11:11 AM IST