Mars is already known for its volcanic features, notably Olympus Mons, a dormant volcano some 14 miles (22 kilometers) tall and 370 miles (600 kilometers) wide, the largest volcanic mountain in the solar system
Mars is already known for its volcanic features, notably Olympus Mons, a dormant volcano some 14 miles (22 kilometers) tall and 370 miles (600 kilometers) wide, the largest volcanic mountain in the solar system