Arsia Mons, one of the Red Planet's largest volcanoes, peeks through a blanket of water ice clouds in this image captured by NASA's 2001 Mars Odyssey orbiter on May 2, 2025.

Credit: NASA/JPL-Caltech/ASU Sunrise on a Distant World Arsia Mons stands nearly 20 kilometers tall—more than twice the height of Mauna Loa, Earth’s largest volcano from seafloor to summit.

Known as Arsia Mons, the volcano dwarfs Earth’s tallest volcanoes. Odyssey, which launched on its mission about 24 years ago from Florida, snapped some photos of the volcano in May, which NASA ...

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.

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 appears here ...