10. Earth’s Mauna Kea
NASA
Mauna Kea stands tall at 33,500 feet and is located on the Big Island in Hawaii. It is a sacred place with significant cultural significance to native Hawaiians. The snowy peak is capped with observatories that help astronomers explore the universe.
9. Venus’ Maat Mons
NASA/JPL
Maat Mons is Venus’s tallest volcano. Covered in patches of dark lava, this roughly four-mile-high shield volcano stands out on the piping hot planet.
The volcano gets its name from the Egyptian goddess of truth, justice, and harmony and Mons for the Latin word for mountain.
8. Enceladus’ Cryovolcanoes
NASA/JPL-Caltech/SSI/PSI
Enceladus’ surface boasts ice volcanoes that spray jets of water vapor, ice, and a mysterious mixture of gases into space. The moon is tiny, with a diameter of approximately 310 miles across. It’s smaller than Olympus Mons.
7. Mars’ Olympus Mons
Historical//Getty Images
Mars’ Olympus Mons is the largest volcano in the solar system. It’s approximately 374 miles across, 16 miles tall, and has a 50-mile-wide crater at its summit.
Scientists believe the volcano has been dormant for at least 2 million years as there isn’t evidence of recent volcanic lava nearby.
6. Triton’s Active Cryovolcanoes
NASA/JPL
Voyager 2 captured images of an active cryovolcano on Neptune’s moon, Triton. The large, dark cloud of particles likely contained frozen nitrogen and methane, still leaving researchers puzzled over the peculiar moon.
5. Mars’ Tharsis Montes
NASA/JPL/USGS
Mars’ largest volcanic region consists of three separate dormant shield volcanoes. Tharsis Montes is composed of Arsia, Pavonis, and Ascraeus Mons, each of which are 220 to 250 miles in diameter and roughly 44 miles apart.