Jupiter-like planet 8 UMi b, named Halla, orbits its host red giant star Baekdu closely. The red giant's merger with a white dwarf star questions how Halla could exist. Credit: Space.com | animation ...

This illustration shows an exoplanet orbiting around two brown dwarfs –– objects bigger than gas-giant planets but too small to be proper stars. ESO/M. Kornmesser Astronomers have discovered a ...

Astronomers have detected an Earth-size planet candidate orbiting a nearby star once a year, making it a promising target for future studies.

A Tatooine-like world with a key difference from the desert planet in "Star Wars" has been serendipitously discovered orbiting not two stars, but a pair of brown dwarfs. What's more, this wacky planet ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...