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

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.

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 ...

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.

Oct. 29 (UPI) --Astronomers have discovered a planetary free agent floating through the Milky Way, unbound to the gravity of any nearby stars. The discovery, detailed Thursday in Astrophysical ...

A possible ninth planet in our solar system, hovering at its edge, in an artist's illustration. ESO/Tom Ruen/nagualdesign Get the Popular Science daily newsletter💡 ...

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.