Scientists are once again astounded by NASA’s Mars Odyssey spacecraft, which took a stunning picture of Arsia Mons, one of ...

In 1669, in what has been considered the volcano's worst known eruption, lava buried a swath of Catania, about 15 miles away ...

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice ...