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Learn about Uranus, the seventh planet from the Sun, and its unique features such as its tilt, rings, moons, and atmosphere. Find out how Uranus was discovered, named, and explored by spacecraft.
- All About Uranus | NASA Space Place – NASA Science for Kids
Structure and Surface. Uranus is surrounded by a set of 13...
- In Depth | Uranus – NASA Solar System Exploration
With a radius of 15,759.2 miles (25,362 kilometers), Uranus...
- Uranus - NASA Science
Uranus. Uranus is the seventh planet from the Sun, and the...
- All About Uranus | NASA Space Place – NASA Science for Kids
- Uranus was officially discovered by Sir William Herschel in 1781. It is too dim to have been seen by the ancients. At first Herschel thought it was a comet, but several years later it was confirmed as a planet.
- Uranus turns on its axis once every 17 hours, 14 minutes. The planet rotates in a retrograde direction, opposite to the way Earth and most other planets turn.
- Uranus makes one trip around the Sun every 84 Earth years. During some parts of its orbit one or the other of its poles point directly at the Sun and get about 42 years of direct sunlight.
- Uranus is often referred to as an “ice giant” planet. Like the other gas giants, it has a hydrogen upper layer, which has helium mixed in. Below that is an icy “mantle, which surrounds a rock and ice core.
Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which in astronomy is called 'ice' or volatiles.
Uranus, seventh planet in distance from the Sun and the least massive of the solar system’s four giant, or Jovian, planets. Uranus has more than two dozen moons, five of which (Umbriel, Miranda, Ariel, Titania, and Oberon) are relatively large, and a system of narrow rings.
