Uranus (mythology) castrated Uranus, from Uranus' blood, which splattered onto the earth, came the Erinyes (Furies), the Giants, and the Meliae. Also, according to the "Theogony", Cronus threw the severed genitals into the sea, around which "a white foam spread" and "grew" into the goddess Aphrodite, although according to Homer, Aphrodite was the daughter of Zeus and Dione. In the Olympian creation myth, as Hesiod tells it in the "Theogony", Uranus came every night to cover the earth and mate with Gaia, but he hated the children she bore him. Hesiod named their first six sons and six daughters the Titans, the
Atmosphere of Uranus Telescope and by ground-based telescopes equipped with adaptive optics systems (the Keck telescope and NASA Infrared Telescope Facility, for instance) made it possible for the first time to observe discrete cloud features from Earth. Tracking them has allowed astronomers to re-measure wind speeds on Uranus, known before only from the "Voyager 2" observations, and to study the dynamics of the Uranian atmosphere. The composition of the Uranian atmosphere is different from that of Uranus as a whole, consisting mainly of molecular hydrogen and helium. The helium molar fraction, i.e. the number of helium atoms per molecule of hydrogen/helium, was determined