The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

A dazzling image taken by NASA’s 2001 Mars Odyssey orbiter shows an unprecedented view of a 12-mile-high volcano poking through clouds at dawn on the Red Planet.

Recent discoveries have revealed that Mars’ core may be heating up unexpectedly, challenging long-held assumptions about the ...

In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on ...

Using NASA's Perseverance rover to analyze Martian rocks, researchers suggest that Mars' complex volcanism might hold clues about the planet's ancient habitability.

The researchers posit that the volcano could have supported conditions favorable for life in the once-watery Jezero crater.

One of Mars' tallest volcanoes peeps over a thick layer of clouds, in Odyssey’s first picture of Arsia Mons peering over the Red Planet's horizon.

Young Mars would have been a staggering place to explore. The Red Planet was covered in flowing rivers of both water and lava. At the time, a series of four volcanoes — Olympus Mons and the ...

A new look at an ancient volcanic blast on Mars suggests that the Red Planet was much more Earth-like billions of years ago, with abundant surface water and a relatively thick atmosphere ...

Mars sits just inside the Goldilocks Zone, suggesting that life was or is possible there, theoretically at least.