Mars: Was Olympus Mons once a giant volcanic island?
Olympus Mons: a volcanic island in the middle of a vanished Martian ocean. Credit: A.Hildenbrand/Geops/CNRS (produced from MOLA public data) Imagine a volcanic island about the size of France and over 20,000 meters high. Such a landscape may once have existed on the planet Mars. Published in the journal Earth and Planetary Science Letters, recent