On Which Planet Is the Solar System's Highest Volcano?

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.

What is the highest volcano in the solar system?

The largest of the volcanoes in the Tharsis Montes region, as well as all known volcanoes in the solar system, is Olympus Mons. Olympus Mons is a shield volcano 624 km (374 mi) in diameter (approximately the same size as the state of Arizona), 25 km (16 mi) high, and is rimmed by a 6 km (4 mi) high scarp.

Is the biggest volcano on Mars?

Olympus Mons (left) is the largest volcano in the solar system. It stands 26 kilometers (15.5 miles) above the surrounding plains, and is 500 kilometers (300 miles) wide at its base.