"Nothing in my professional training as an X-ray astronomer had prepared me for something like this."

NASA X-ray spacecraft reveals the shockingly violent history of the Milky Way's supermassive black hole

Source: space
Source Link: https://www.space.com/astronomy/black-holes/nasa-x-ray-spacecraft-reveals-the-shockingly-violent-history-of-the-milky-ways-supermassive-black-hole