"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 fainter early on." ...

NASA researchers have identified geological structures on Mars that are unlike anything found on Earth. From spider-like ...

Adams modified a model called KINETICS to simulate how a combination of hydrogen and other gases reacting with both the ground ... the chemistry of Mars' atmosphere was also fluctuating. CO 2 is ...

The above image shows a 20-meter-long chunk of frozen carbon dioxide falling off a cliff. Rising temperatures during the ...

Formations that look like jumbo-sized kidney beans (or blobs of chocolate syrup, depending on your palette) may be indicators ...

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

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

The phenomenon of twilight clouds was first observed on Mars in 1997 during NASA’s Pathfinder mission. However, it wasn’t ...

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

Hydrogen was previously theorized as the magic ingredient, mixed with carbon dioxide in the Martian atmosphere ... and other gases reacting with both the ground and the air controlled the early ...

A massive meteor strike on Mars sent shockwaves across the planet, revealing that some of its tremors weren’t tectonic but ...