New research suggests that temperatures on ancient Mars may have fluctuated between hot and cold periods through a relatively ...

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

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 ...

Astronomers have retracted the discovery of a new asteroid after realizing the object was the remains of Elon Musk's Tesla ...

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

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

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

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

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 ...

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