Because of its cloud cover, Arsia Mons has been hard to photograph. This new image from NASA's 2001 Mars Odyssey orbiter gives a first-of-its kind view at the peak of the volcano.

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.

Welcome to Arsia Mons. The Martian volcano Arsia Mons looms nearly 6 miles above the surrounding landscape, but its peak lies off-camera in this image from the European Space Agency’s Mars ...

Unlike other Martian cloud structures that seem to poof in and out of existence, this one has staying power, with the lengthy plume hovering near Arsia Mons since Sept. 13 and seen as recently as ...

The Martian volcano Arsia Mons may have been home to one of the most recent habitable environments yet found on the Red Planet, geologists say. The research shows that volcanic eruptions beneath a ...

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 Planet’s atmosphere, which ...

The volcano Odyssey spotted is known as Arsia Mons, one of three that forms the Tharsis Montes, or Tharsis Mountains.Though clouds composed of carbon dioxide are common on Mars, the Martian ...

Volcanic activity in Arsia Mons — the southernmost member of the Tharsis Montes group — most likely peaked roughly 150 million years ago.

Arsia Mons produced one new lava flow at its summit every 1 to 3 million years during the final peak of activity, about 50 million years ago. The last volcanic activity there ceased about 50 ...