X-ray echoes reveal recent bright flash from Milky Way’s black hole
At the heart of our galaxy lurks a supermassive monster, which is currently slumbering – but it hasn’t always been so quiet. New observations reveal an X-ray “echo” from a time when the Milky Way’s central black hole awoke just 200 years ago, shining a… Continue reading X-ray echoes reveal recent bright flash from Milky Way’s black hole