The methane gas makes it blue.
Neptune.
blue, bright, big
The absorption of red light by the atmospheric methane is what gives neptune its blue hue, although neptunes vivid azure blue differs from Uranus' milder aquamarine
Neptune, the furthest planet from the sun.
Neptune have 3 bright ring's scienist said.
Neptune is BOTH
Uranus is a greenish blue, and Neptune is blue.
The planet Neptune is Blue. See Related Links for an image of this planet. Neptune is light blue but looks dark blue due to the affects of Methane gas.
Why is Neptune blue? Neptune
Neptune is named that because Neptune is the god of the sea and the sea is blue. Neptune is also blue. Comment: That can't be the answer though, because they didn't know that the planet was blue at the time it was named.
Neptune's vision is blue and it is the 8th planet. There is Neptune because it is a planet.
Why is neptune blue? Neptune is blue because of its light. k?