Astronomers Detect Milky Way’s 2nd-Largest Known Black Hole

Astronomers Detect Milky Way’s 2nd-Largest Known Black Hole
An artist's impression shows the orbits of the most massive stellar black hole in our galaxy, dubbed Gaia BH3, and a companion star, in this image obtained on April 16, 2024. European Southern Observatory/L. Calcada/Handout via Reuters
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WASHINGTON—Astronomers have discovered a black hole with a mass about 33 times greater than that of our sun, the biggest one known in the Milky Way aside from the supermassive black hole lurking at the center of our galaxy.

The newly identified black hole is located about 2,000 light-years from Earth—relatively close in cosmic terms—in the constellation Aquila, and has a companion star orbiting it, researchers said on Tuesday. A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).