A bit after sunrise on June 6, 2025, NASA's 2001 Mars Odyssey orbiter saw one of Mars' biggest volcanoes, Arsia Mons, as it broke through the clouds. The volcano is the cloudiest of the Tharsis ...

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 ...

A new analysis of data from NASA's Mars Reconnaissance Orbiter reveals that the majority of the Red Planet's dark "slope ...

On November 13, 1971, Mariner 9 became the first spacecraft to orbit Mars. At the time, scientists didn't know much about 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 ...

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 ...

A NASA orbiter has captured a stunning image of a giant volcano on Mars. The panorama, captured on May 2 by NASA’s Mars Odyssey orbiter, shows Arsia Mons, one of the largest volcanos on the Red Planet ...

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 rare meteoroid impact on Mars has given scientists a glimpse into how the planet’s dusty surface is constantly reshaped. When a space rock struck near the edge of Apollinaris Mons, a large volcano ...

This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft. Io, ...