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 ...

"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 ...

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

Extraplanetary spacefaring has a hoary history in science fiction. Elon Musk, our so-touted Mars visionary, is an avid sci-fi ...

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' ...

Elon Musk has shared plans to use Starship rockets for long-distance flights on Earth. The billionaire claims it will be ...

NASA is working on an exciting mission to send humans to Mars in the next few decades. To make this happen, the agency is ...

Scientists confirm the existence of liquid water on Mars, altering our understanding of the Red Planet. Evidence of wave ...

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