The water-rich iron mineral ferrihydrite may be the main culprit behind Mars's reddish dust, rather than the dry, rust-like ...

Volcanic activity is increasing at Alaska's Mount Spurr volcano, which scientists say could indicate an eruption in weeks as ...

A recent study of data from multiple missions shows the Red Planet may get its name from an iron mineral that formed when ...

With new data coming in from Mars, scientists have a new theory about why the planet is red. What does this mean for whether ...

Scientists have identified another possible commonality between Earth and Mars: a solid inner core. Scientists have ...

Mars’ thick crust may have been a hidden engine of geological activity, producing granitic magmas and sustaining underground ...

Abstract: Tharsis Montes is the largest volcanic province on Mars, and Ascraeus Mons in its northeastern part is the largest volcano of the province. The material composition of the lava flows and ...

Step aside, Santa Monica. It seems that Mars once had beaches that would give the Californian coast a run for its money.

"We found evidence for wind, waves, no shortage of sand—a proper, vacation-style beach," said geologist Benjamin Cardenas.

The most significant change since those 1970's experiments were conducted was the discovery of high levels of perchlorate on Mars. Perchlorate, plus abiotic oxidants, explains the Viking results and ...

The study, led by Adomas Valantinas of Brown University and published in Nature Communications, has confirmed the real reason ...