Astronomy › Section I · Giant planets, moons, and rings › Topic I.5
Titan and Triton
Saturn's moon Titan has a thicker atmosphere than Earth, with methane rain, rivers and seas. Neptune's moon Triton orbits backwards and blows nitrogen geysers from one of the coldest surfaces ever measured. Both show how active an icy world can be.
In this topic
- Titan: a moon with weather
- A thick nitrogen atmosphere
- Worked example: how much air does Titan have?
- Huygens on the surface
- Methane rain, rivers and seas
- Titan and life
- Triton: Neptune's backwards moon
- Worked example: was Triton captured?
- Geysers and a young surface
- Common mistakes to avoid
- Key takeaways
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