Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

Astronomers have spotted the most massive known stellar black hole in the Milky Way galaxy after detecting an unusual wobble in space. The so-called "sleeping giant," named Gaia BH3, has a mass that ...

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...