Olympus Mons is an extinct
volcano and the largest known volcano in the solar system.
Olympus Mons is an extinct
volcano and the largest known volcano in the solar system.
It rises about 16.5 miles above
the surface of the planet -- that's 3 times higher than commercial
airliners fly. It is 372 miles from edge to edge at the base -- that's
larger than the state of Washington! The crater in the center is 40
miles
wide from rim to rim. Olympus Mons is an extinct volcano and the
largest known volcano in the solar system.
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