VERIFIED FACT
Mars has a volcano nearly three times taller than Mount Everest.
Why this sounds fake
Everest feels like the natural upper limit for mountains because it anchors our sense of height.
Earth's tallest mountains feel like the ceiling of mountain scale because they are the ones humans can see, climb, and measure against. Mars makes that scale look small. NASA describes Olympus Mons as the largest volcano in the solar system, about 16 miles, or 25 kilometers, high. Mount Everest is under 9 kilometers above sea level. The comparison is not exact in every geological detail, but the size difference is clear enough: Mars has a mountain-like volcano that towers far beyond Earth's most famous peak. The red planet wins the height contest by a ridiculous margin.
1 discovery explored