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 ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...

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 ...

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

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

New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

"Hopefully there’s no traffic! [laughing emoji]." Check out even more hilarious reactions below: "Imagine you’re flying ...

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

The distance between Earth and Mars changes constantly due to their orbits, and the technology used to propel spacecraft plays a significant role in determining travel time. In this article ...

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.