Researchers have discovered a planet with temperatures capable of creating metal clouds on its night side, and its tearing itself apart.

A US astronaut has captured an extraordinary view of a phenomenon in space brought on by an intense thunderstorm below.

Science Space Solar System Why a mysterious ninth planet might be lurking beyond Pluto A new computer model suggests a world a little larger than our own Earth hides within the distant Kuiper belt.

A terrestrial planet hovering between Mars and Jupiter would be able to push Earth out of the solar system and wipe out life on this planet, according to a recent experiment.

Backyard Worlds: Planet 9, a citizen science project, lets space enthusiasts search for undiscovered objects in the sky, including a hypothesized planet at the far reaches of the solar system.

Astronomers have discovered a planetary free agent floating through the Milky Way, unbound to the gravity of any nearby stars.

A terrestrial planet hovering between Mars and Jupiter would be able to push Earth out of the solar system and wipe out life on this planet, according to a UC Riverside experiment. UCR astrophysicist ...

If so, you can take part in the Floating Forests citizen science project, which is interested in preserving these vital underwater ecosystems for the future.

Supercomputers helped unlock a satellite's ability to monitor the mountains of floating plastic.

THE James Webb Space Telescope has discovered its first-ever exoplanet – a distant world hidden by the glare of its nearest star. The landmark discovery marks a new era for alien-hunters, ...

Astronomers have spotted the smallest "rogue planet" candidate yet known, a Mars- to Earth-mass world that apparently cruises through our Milky Way galaxy unattached to a star.

The next wheels on the red planet will belong to the Mars Science Laboratory (MSL) – a huge step in how that planet is further poked, probed, and more fully plumbed for new information.