Uranus (mythology) Uranus (mythology) Uranus (; Ancient Greek , "Ouranos" meaning "sky" or "heaven") was the primal Greek god personifying the sky and one of the Greek primordial deities. Uranus is associated with the Roman god Caelus. In Ancient Greek literature, Uranus or Father Sky was the son and husband of Gaia, Mother Earth. According to Hesiod's "Theogony", Uranus was conceived by Gaia alone, but other sources cite Aether as his father. Uranus and Gaia were the parents of the first generation of Titans, and the ancestors of most of the Greek gods, but no cult addressed directly to Uranus survived into
Atmosphere of Uranus internal heat source was required to explain observed temperatures. No discrete features had been observed on Uranus prior to the "Voyager 2" visit in 1986. In January 1986, the "Voyager 2" spacecraft flew by Uranus at a minimal distance of 107,100 km providing the first close-up images and spectra of its atmosphere. They generally confirmed that the atmosphere was made of mainly hydrogen and helium with around 2% methane. The atmosphere appeared highly transparent and lacking thick stratospheric and tropospheric hazes. Only a limited number of discrete clouds were observed. In the 1990s and 2000s, observations by the Hubble Space