A black hole the size of Jupiter is just wandering around the galaxy

Black holes tend to come in two sizes: relatively small ones that form after a star collapses, and supermassive black holes that contain the mass of millions or billions of stars. Evidence for black holes that sit somewhere in the middle of that range has been scarce.

Now, a new study has found ripples in an interstellar gas cloud that hint at the existence of an intermediate-mass black hole wandering through our galaxy.

Shunya Takekawa at the National Astronomical Observatory of Japan and his colleagues found streams of gas orbiting an invisible