The supermassive black hole at the heart of the Milky Way, Sagittarius A*, is relatively quiet. It's not an active nucleus, spewing light and heat into the space around it, until now.
Astronomer Tuan Do and his team took observations of the galactic center using the WM Keck Observatory in Hawaii over four nights earlier this year. The strange flashes were captured in timelapse earlier this year, two hours condensed down to a few seconds.
Check out the video below.
What does it mean?