Facts about Mount Olympus

1. 14

   Olympus Mons on Mars rises so gradually that its 21-degree slope angle means you could walk up its surface at a comfortable hiking pace without noticing significant elevation gain.

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2. 13

   Evidence of volcanic activity on Olympus Mons dates back approximately 3.7 billion years based on crater analysis, making it one of Mars' youngest major volcanoes despite its enormous size.

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3. 12

   Olympus Mons on Mars has a circumference of approximately 1,920 kilometers, making it nearly as wide as the distance between New York and Los Angeles.

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4. 11

   Scientists estimate Olympus Mons on Mars took over 3 billion years to reach its current size due to its extraordinarily slow eruption rate compared to Earth's volcanoes.

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5. 10

   Olympus Mons on Mars stopped erupting approximately 2 billion years ago, making it geologically inactive and the oldest known volcano in the solar system.

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6. 09

   Olympus Mons on Mars lacks the steep cliff walls found on Earth volcanoes because its extremely low viscosity lava allowed material to spread outward rather than build upward dramatically.

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7. 08

   Olympus Mons on Mars contains approximately 100 million cubic kilometers of volcanic material, enough to bury the entire continental United States under 2 kilometers of rock.

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8. 07

   Olympus Mons on Mars formed over billions of years through repeated lava flows from a single hotspot, unlike Earth volcanoes created by plate tectonics.

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9. 06

   Olympus Mons on Mars has such a vast area of roughly 624,000 square kilometers that its edges would be completely invisible from its summit due to the planet's curvature and atmospheric haze.

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10. 05

    Lava flows from Olympus Mons on Mars extended up to 1,600 kilometers across the planetary surface, making them among the longest lava flows known in the entire solar system.

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11. 04

    Olympus Mons lacks a summit caldera typical of Earth volcanoes because its eruption rate was too slow to create the structural collapse needed for one.

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12. 03

    Olympus Mons' extremely low slope of only 5 degrees makes Mount Olympus on Mars so gradual that standing on its base would feel almost imperceptibly uphill.

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13. 02

    The shield volcano Mount Olympus on Mars spans approximately 624 kilometers in diameter, making it roughly the size of the entire state of Arizona.

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14. 01

    At 21,919 feet, Mount Olympus on Mars is nearly 2.5 times taller than Mount Everest and the largest volcano in the solar system.

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