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

A pipe dream or a scam to enrich himself further? Here's why scientists are skeptical of Elon Musk's dream for humans to colonize Mars.

The image below, taken by the European Space Agency's Trace Gas Orbiter (which arrived at Mars in 2016), shows one of the ...

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

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

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

"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 ...

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

NASA is working on a groundbreaking nuclear electric propulsion system that could dramatically speed up trips to Mars. The ...

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Understanding chorus waves is vital, as they create fast-moving, highly energetic electrons (known as killer electrons) that ...