Planetary Geology · 4
Volcanic Features
Volcanoes, lava plains, and the ice volcanoes of the outer worlds.
- Ahuna MonsSurface featureCeres · ≈ 4 km high
A steep, isolated mountain on Ceres interpreted as a cryovolcano — a dome built by icy, briny material erupting from within the dwarf planet.
- Mare ImbriumSurface featureThe Moon · ≈ 1,150 km across
The vast lava-filled 'Sea of Showers', one of the largest lunar maria, occupying a giant ancient impact basin on the Moon's near side.
- Tharsis MontesSurface featureMars · Three volcanoes on a continent-sized bulge
A chain of three vast shield volcanoes on the Tharsis rise, a bulge so large it may have tilted the whole planet. Tharsis dominates the western hemisphere of Mars.
- Tiger StripesSurface featureEnceladus
Four parallel fractures across the south pole of Enceladus from which giant plumes of water vapour and ice erupt into space — fed by the moon's subsurface ocean.