1. Volcanoes on Mercury.
NASA/Johns Hopkins University/Carnegie Institution of Washington
2. Maat Mons, the highest volcano on Venus.
3. On Venus, Idunn Mons is hotter than its surroundings.
4. The dark “maria” on the Moon are volcanic plains of Venus.
5. The Hortensius Domes on the Moon, like Mercury, our Moon was once volcanically active, but no longer.
NASA/GSFC/Arizona State University
6. Olympus Mons on Mars is the largest known volcano in the solar system.
7. Olympus Mons top view.
8. Io, one of the four large moons of Jupiter, the most volcanically active world in the solar system.
NASA/JPL/University of Arizona
9. A volcanic plume erupts from Io.
10. Titan orbits outside Saturn’s main rings.
NASA/JPL/Space Science Institute/SPL
11. Doom Mons (“Mount Doom”) on Titan.
NASA/JPL/CalTech/USGS/University of Arizona
12. A geyser erupts from Saturn’s moon Enceladus.
NASA/SPL/Space Science Institute
13. Neptune’s moon Triton.
14. The volcanic landscape of Triton.
NASA/JPL/Universities Space Research Association/Lunar & Planetary Institute
15. Artist’s impression of ice volcanoes on Triton.