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 ...

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 ...

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 ...

Phobos, the oddly-shaped moon of Mars, has been captured in a series of stunning images gliding above the planet’s volcanic ...

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 ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

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 ...

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 three ...