Olympos Mons on mars is the largest volcano in it. Mars is about 1/2 the size of earth, and it has several volcanoes that are larger then the largest terrestrial volcanoes on earth.
Olympos Mons on mars is the largest volcano in it. Mars is about 1/2 the size of earth, and it has several volcanoes that are larger then the largest terrestrial volcanoes on earth.