Scientists have discovered an enormous stellar-mass black hole in our Milky Way galaxy that’s roughly 33 times more massive than our sun. This black hole designated as Gaia-BH3 was observed with the European Space Agency’s Gaia space telescope and is pretty close to Earth in space-terms at only 2,000 light years away. It is described in a paper presented April 16 in the journal Astronomy & Astrophysics.
Kornmesser However, both are considered small compared with the supermassive black hole at the heart of our galaxy–Sagittarius A*. Its mass is 4.2 million times that of the sun. Enormous black holes like Sagittarius A* are created by progressively larger and larger black holes merging together, and not by the death of large stars.
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