Explanation: Uranus is the third largest planet in our Solar System after Jupiter and Saturn. Uranus is composed mostly of rock and ices, but with a thick hydrogen and helium atmosphere. The blue hue of Uranus' atmosphere arises from the small amount of methane which preferentially absorbs red light. This picture was snapped by the Voyager 2 spacecraft in 1986 - the only spacecraft ever to visit Uranus. Uranus has many moons and a ring system. Uranus, like Venus, has a rotation axis that is greatly tilted and sometimes points near the Sun. It remains an astronomical mystery why Uranus' axis is so tilted. Uranus and Neptune are quite similar: Uranus is slightly larger but less massive.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Solar System - Uranus - Uran - solnechnaya sistema Publikacii so slovami: Solar System - Uranus - Uran - solnechnaya sistema
Sm. takzhe: Semeinyi portret Solnechnoi sistemy Shekspir v kosmose Stranniki Krovavaya Luna i ledyanoi gigant Planety Solnechnoi sistemy: naklony i vrashenie Uran i ego sputniki v dvizhenii Padenie shara v Solnechnoi sisteme Vse publikacii na tu zhe temu >>