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"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 ...

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

Continuing the Artemis program and using its planned lunar space station as a staging post would be a more energy efficient ...

NASA’s Perseverance rover has collected a sample from Mars that has textures “unlike anything we’ve ever seen before.” Known ...

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

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

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

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

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

The Martian dichotomy came to light in the 1970s following the Viking Probe's transmission of remarkably detailed Martian ...