GENERAL KNOWLEDGE

Detailed explanation-1: -Both worlds are blue because they have methane in their atmospheres, which absorbs the color red from the sun’s light.

Detailed explanation-2: -Neptune is very similar to Uranus. It’s made of a thick fog 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: -Neptune’s thick atmosphere is mostly hydrogen, with smaller amounts of helium and methane. It is the absorption of red light by methane which gives Neptune its very blue coloration.