For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary ...

Astronomers have made a groundbreaking discovery that challenges our understanding of gas giant formation within our solar ...

NASA scientists were baffled after uncovering a rock on Mars that didn’t belong there — with a composition pointing to ...

Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

In a patch of the Pacific’s abyssal plain, scientists a surprising phenomenon called “dark oxygen production.” ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...