Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...

A rugged Martian landscape that resembles a vast spiderweb when seen from orbit is offering new insights into the planet’s ...

A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict a “three-sided pyramid” on the Red Planet.

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump sign an executive order?

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

A mysterious fireball moving in a way that defies the laws of gravity was spotted over Texas just as Earth has seen a surge in stunning meteor sightings.

SpaceX conducted a static fire test with the first stage of its V3 Starship on Monday (March 16), a milestone moment for this ...

Learn about the surprising surface of Asteroid Bennu, loaded with boulders and cracks that have caused it to experience rapid ...

NASA's X-59 jet looks ready to fly into the sunset in this new image taken before its second test flight.