Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

While most people searching for signs of alien life these days might have their eyes on the exoplanet K2-18b, one team of researchers is keeping their sights a little closer to home. Texas A&M ...

A NASA spacecraft that has been circling Mars for more than two decades has spotted something it never has before in well over 100,000 orbits of the Red Planet. On a morning horizon in May, the ...

Arsia Mons once spewed molten rock across the surface of Mars, but some smaller volcanic features may have come from another source. (NASA/JPL/USGS/) Mars’s northern lowlands are dotted with tens of ...

New findings suggest that massive volcanoes played a pivotal role in shaping the early Martian landscape. We are about to explore the scientific evidence that supports this hypothesis and the ...

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. Arsia Mons, which dwarfs Earth’s ...

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, scientists ...

Mars’s marred surface consists of craters, canyons, and mysterious formations that hint at a complex geological past. Scientists recently studied a tantalizing feature that could shed light on the ...

Arsia Mons, an ancient Martian volcano, was captured before dawn on May 2, 2025, by NASA’s 2001 Mars Odyssey orbiter while the spacecraft was studying the Red ...

From arachnid-like formations and mysterious blobs to an underground ocean and a giant volcano, here are our 10 favorite things scientists discovered on Mars this year. When you purchase through links ...