Tiny Volcanoes Are a Big Deal on Mars

Life might be the focus of Mars exploration today, but our planetary neighbor is the home to the largest volcanoes in the solar system. Olympus Mons towers 23 kilometers (75,000 feet) over the surrounding landscape, and its neighbors, the Tharsis Montes (Arsia Mons, Pavonis Mons, and Ascraeus Mons), stand out as a line of volcanic giants.