Olympus Mons is the largest volcano in the solar system. The massive Martian mountain towers high above the surrounding plains of the red planet, and may be biding its time until the next eruption. Characteristics. read more
For Olympus Mons to erupt there would have to be liquid rock below the surface. Mars is no longer hot enough to keep rocks that hot. The volcano can not erupt since the rock under it has cooled and is hard. read more
Olympus Mons is extinct, so it will not erupt ever again. read more