Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never ...

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

The Artemis program has been NASA's best chance to get "boots on the moon" again. But with the new US administration taking ...