Where is the largest volcano that is located in this universe? Does this volcano have a name? How high is this volcano?

rocky Caroll


Dear Caroll,

We haven't had a good look at planets elsewhere in the Universe yet. We are getting a pretty good look at our Solar System. The largest nearby volcano is Olympus Mons on Mars. It is about 17 miles (27 km) tall. That's a long hike for some future explorer. Mount Everest is about 6 miles (10 km) tall.

Steve Mattox and Robert Wickman, University of North Dakota


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