There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

Researchers argue that a black hole that's around the size of a moon or planet could exert the same gravitational force as the supposed Planet Nine. Black holes of this size are theoretically ...

Our solar system used to have nine planets. Astronomer Mike Brown ... such as a primordial black hole — created just after the big bang — that our solar system captured as it moved across ...

Nobody has found Planet Nine yet. If it’s really out there ... In 2019 researchers even wondered whether a tiny black hole might be the culprit. When I raise this possibility to Brown, he ...

The candidate for Planet Nine displayed a tiny amount of movement ... MORE: Binary star system found near the Milky Way's black hole: An 'amazing' discovery, astrophysicists say There are ...

Astronomers have discovered a remarkable planetary system that challenges long-held assumptions about where planets can ...

The latest comes from Harvard Professor Avi Loeb, who proposed in a recent paper how advanced civilizations could rely on a "Black Hole Moon" to provide their home planet with power indefinitely.