Uranus (mythology) three one-hundred-handed giants the Hekatonkheires, and the one-eyed giants the Cyclopes. Uranus imprisoned Gaia's youngest children in Tartarus, deep within Earth, where they caused pain to Gaia. She shaped a great flint-bladed sickle and asked her sons to castrate Uranus. Only Cronus, youngest and most ambitious of the Titans, was willing: he ambushed his father and castrated him, casting the severed testicles into the sea. For this fearful deed, Uranus called his sons Titanes Theoi, or "Straining Gods." From the blood that spilled from Uranus onto the Earth came forth the Giants, the Erinyes (the avenging Furies), the Meliae (the
Rings of Uranus some of which are composed of very bright material—water ice. There are similarities with some parts of the latter ring system; the Saturnian F ring and the Uranian ε ring are both narrow, relatively dark and are shepherded by a pair of moons. The newly discovered outer ν and μ rings of Uranus are similar to the outer G and E rings of Saturn. Narrow ringlets existing in the broad Saturnian rings also resemble the narrow rings of Uranus. In addition, dust bands observed between the main rings of Uranus may be similar to the rings of Jupiter. In contrast,