The Milky Way’s quiet, introverted monster won’t spin – Livescience.com

There’s a beast hiding at the center of the Milky Way, and it’s barely moving.
This supermassive black hole, Sagittarius A* (SgrA*), has a mass 4.15 million times that of our sun. It first revealed itself to scientists as a mysterious source of radio waves
from the galaxy’s center back in 1931; but it wasn’t until 2002 that researchers confirmed the radio waves were coming from something massive and compact like a black hole a feat that earned them the 2020 Nobel Prize in physics
. Just days before…

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