Uranus' atmosphere. Coloured infrared image of three layers of the atmosphere of Uranus. The red around the planet's edge represents a thin haze at high altitude. The haze is so thin that it can only be seen by looking at the edge of the planet's disk. The yellow near the bottom of the disk is a lower, hazy layer. The blue near the top of Uranus is a clear layer which is beneath the haze. Around the planet are the rings of Uranus. Uranus' atmosphere consists mainly of hydrogen with traces of methane. Its layers are created by different mixtures of gases. Image taken by the Hubble Space Telescope on 3 July 1996.