SOLAR SYSTEM

Detailed explanation-1: -Uranus’ atmosphere is mostly hydrogen and helium, with a small amount of methane and traces of water and ammonia. The methane gives Uranus its signature blue color.

Detailed explanation-2: -Neptune is very similar to Uranus. It’s made of a thick soup of water, ammonia, and methane over an Earth-sized solid center. Its atmosphere is made of hydrogen, helium, and methane. The methane gives Neptune the same blue color as Uranus.

Detailed explanation-3: -Atmospheric composition by volume: Molecular hydrogen: 82.5 percent. Helium: 15.2 percent. Methane: 2.3 percent.

Detailed explanation-4: -Uranus has a thick atmosphere made of methane, hydrogen, and helium.

Detailed explanation-5: -Until now, scientists have been puzzled about why ammonia seems to be scarce in Uranus’ and Neptune’s atmospheres. The atmospheres of the two planets do contain other primordial gases, similar to methane. But that only makes the lack of ammonia more baffling.

Detailed explanation-6: -Methane (CH4) is abundant on the giant planets-Jupiter, Saturn, Uranus and Neptune-where it was the product of chemical processing of primordial solar nebula material.