Help us create experiences of awe and wonder with the Astronomy Discovery Center, opening by It is the largest volcano in the solar system at 72, ft tall two and a half times the height of Mount Everest and miles wide nearly the size of the state of Arizona. Shield volcanoes like Olympus Mons are formed as lava slowly flows out of the ground and spreads out, creating a low, squat appearance.
Scientists posit that Olympus Mons is still a fairly young volcano from a geologic standpoint, estimating it to be only a few million years old. This means that Olympus Mons, which is already the size of France, could get even bigger as fresh lava flows to the surface and cools. Mars will also be at its closest point to Earth in its orbit during opposition, making it appear bigger and brighter in the sky. Log out. US Markets Loading H M S In the news. Jessica Orwig.
Sign up for notifications from Insider! Stay up to date with what you want to know. Loading Something is loading. Email address. Deal icon An icon in the shape of a lightning bolt. On Mars, the crust remains stationary and the lava piles up in one, very large volcano.
Mars Atlas. Olympus Mons compared to Arizona. Caldera at the summit. MOC image of Olympus Mons. Why is Olympus Mons so big?
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