Observations investigate long-term X-ray variability of young stellar object HL Tauri
Using ESA's XMM-Newton satellite and NASA's Chandra X-ray observatory, astronomers have observed a young stellar object known ...
Flickers and flares: Milky Way's central black hole constantly bubbles with light
Astrophysicists have observed our central supermassive black hole. They found the accretion disk is constantly emitting flares without periods of rest. Shorter, faint flares and longer, bright flares ...