What is Atmosphere of Uranus?
[[File:Uranus2.jpg|thumb|right|Uranus's atmosphere]] The '''atmosphere of Uranus''' is mainly made up of [[hydrogen]] and [[helium]]. The lower atmosphere is made up of [[volatiles]] such as [[water]], [[ammonia]] and [[methane]]. The upper atmosphere contains very few [[Gas|gases]] that are heavier than hydrogen and helium because the [[temperature]] of its atmosphere is low. Uranus's atmosphere is the coldest atmosphere of all the [[Planet|planets]] in the [[Solar System|Solar system]]. Its temperature is as low as 49 K. {{science-stub}} [[Category:Atmosphere]] [[Category:Uranus]]