Scientists may have figured out how Mars hung onto its surface liquid water in its ancient history via alternating periods of ...

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

NASA's remarkable new sample from Mars will help scientists get a better understanding of the planet's history and whether it ...

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

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

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 ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...

and they plan to compare those results to rocks from the upcoming Mars Sample Return mission. Because Mars lacks plate tectonics, unlike Earth, the surface seen today is similar to that of long ...