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 ...

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 ...

Bernal and his team published their observations in 2020, dubbing it the Arsia Mons Elongated Cloud, or AMEC for short. With the cloud spanning 1,100 miles, scientists believe it could be the ...

This includes Olympus Mons, the tallest volcano in the solar system. Arsia Mons itself measures 435km (270 miles) in diameter and rises more than 9km (5.5 miles) above the surrounding plains.

In it, Arsia Mons stands 12 miles (20 kilometers) high and measures 70 miles (450 km) in diameter. For comparison, Earth’s tallest volcano, Mauna Loa, stands 6 miles (9 km) above the seafloor ...

Arsia Mons volcano in black and white The total height difference in the land surfaces in these scenes is about 7 kilometres, and some individual collapse pits have a depth of 2 kilometres.

Arsia Mons, though not as tall as Olympus Mons, dominates the Martian landscape with its 12-mile (20 km) height. Located in the Tharsis Montes volcanic region, this volcano is often shrouded in ...

The Arsia Mons cloud is one of the wonders of Mars. It may be less of a mystery now, but it's just as fascinating as ever.

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.

Arsia Mons is the southernmost of the three volcanoes that make up Tharsis Montes, shown in the center of this cropped topographic map of Mars. Olympus Mons, the solar system’s largest volcano ...