Jupiter: 90% hydrogen 10% helium 0.3% methane Saturn: 90% hydrogen 3.5% helium .5% methane Uranus: 83% hydrogen 15% helium 2% methane Neptune: 80% hydrogen 19% helium 2% methane

Question

Jupiter: 90% hydrogen 10% helium 0.3% methane  Saturn: 90% hydrogen 3.5% helium .5% methane  Uranus: 83% hydrogen 15% helium 2% methane  Neptune: 80% hydrogen 19% helium 2% methane

which planets have the most similar atmospheres

GPT 3.5 · Answer

Saturn and Uranus have the most similar atmospheres. Both have a similar composition with a high percentage of hydrogen and helium, and a relatively comparable amount of methane.