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 ...

New findings suggest that massive volcanoes played a pivotal role in shaping the early Martian landscape. We are about to explore the scientific evidence that supports this hypothesis and the ...

Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...

Scientists have discovered a mysterious hole on the surface of Mars, and they have no idea what lies inside it. This pit, located in the Arsia Mons region — one of Mars’ giant volcanoes — could ...

"Explosive volcanism could repeatedly seed low latitudes with ice and ash, producing buried or insulated ice deposits that help explain the excess hydrogen signals measured near the equator." When you ...