| Earth |
H2O |
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| Mars |
H2O, CO2 |
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| Asteroids |
H2O is seen on some asteroids, as is ice with a C-H infrared signature |
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| Jupiter |
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| Io |
SO2, SO3, H2S?, H2O? |
| Europa |
H2O, SO2, SH, CO2, O2, HC, XCN, H2O2, H2SO4, carbonate salt, hydrous sulfate |
| Ganymede |
H2O, SO2, SH, CO2, HC, XCN, O2, O3, hydrated and hydroxylated minerals |
| Callisto |
H2O, SO2, SH, CO2, HC, XCN, hydrated and hydroxylated minerals |
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| Saturn |
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| Mimas |
H2O |
| Enceladus |
H2O , NH3? |
| Tethys |
H2O |
| Dione |
H2O, C, HC, O3 |
| Rhea |
H2O, HC?, O3 |
| Hyperion |
H2O, CO2, CN |
| Iapetus |
H2O, CO2, C, HC, CN, H2S? |
| Phoebe |
H2O, CO2, CN, CH |
| Titan |
H2O , C2(CN)2 |
| Rings |
H2O, HC? |
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| Uranus |
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| Miranda |
H2O, NH3 (NH3 hydrate?), hydroxylated silicates |
| Ariel |
H2O, CO2, OH? |
| Umbriel |
H2O, CO2 |
| Titania |
H2O, C, HC, CO2, OH? |
| Oberon |
H2O, C, HC, OH? |
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| Neptune |
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| Triton |
N2, CH4, CO, CO2, H2O |
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| Pluto |
N2, CH4, CO, H2O |
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| Charon |
H2O, NH3 (NH3 hydrate?) |
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| Kuiper Belt Objects |
H2O is seen on some Kuiper Belt objects. Also identified are NH3, CH4, and C2H6. |
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| Comets |
H2O and a variety of coma (gas-phase) molecules
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