The Milky Way’s black hole is constantly bubbling

Two different types of flares light up the galactic center

Glowing lines surround and warp around a black circle

The disk of hot plasma surrounding Sagittarius A*, the Milky Way’s central black hole, constantly flickers and bubbles in this artist’s illustration.

NASA, ESA, CSA, Ralf Crawford (STScI)

The black hole at the Milky Way’s heart neither slumbers nor sleeps.