In Depth | Uranus – NASA Solar System Exploration
The seventh planet from the Sun with the third largest diameter in our solar system, Uranus is very cold and windy. The ice giant is surrounded by 13 faint rings and 27 small moons as it rotates at a nearly 90-degree angle from the plane of its orbit.
10 Need-to-Know Things About Uranus - NASA Solar System …
Uranus is an ice giant. Most of its mass is a hot, dense fluid of "icy" materials – water, methane and ammonia – above a small rocky core.
Uranus By the Numbers – NASA Solar System Exploration
2025年1月9日 · Uranus is the seventh planet from the Sun, and the third largest planet in our solar system. It appears to spin sideways.
Planet Compare - NASA Solar System Exploration
2025年1月9日 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | Uranus Moons – NASA Solar System Exploration
All of Uranus's inner moons (those observed by Voyager 2) appear to be roughly half water ice and half rock. The composition of the moons outside the orbit of Oberon remains unknown, but they are likely captured asteroids.
RPS 3D Viewer - NASA Solar System Exploration
2025年1月9日 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
The Case for a Uranus Orbiter - NASA Solar System Exploration
This paper discusses some of the fundamental science that must be done at Uranus if we are to understand our Solar System and systems discovered around other stars. We suggest a Uranus Orbiter should be launched in the next decade.
Gravity Assist: Ice Giants (Uranus & Neptune) with Amy Simon
2018年1月17日 · Beyond Saturn are two of the most misunderstood and bizarre planets in our solar system—the “ice giants” Uranus and Neptune. Did you know that Uranus has rings and appears to spin on its side? And that windy and intensely blue Neptune once had an Earth-sized Great Dark Spot?
Huge Spring Storms Rouse Uranus from Winter Hibernation
1999年3月29日 · Uranus is tilted completely over on its side, giving rise to extreme 20- year-long seasons and unusual weather. For nearly a quarter of the Uranian year, the sun shines directly over each pole, leaving the other half of the planet plunged into a long, dark, frigid winter.
Why Uranus and Neptune Are Different Colors - NASA Solar …
2022年5月31日 · Neptune and Uranus have much in common — they have similar masses, sizes, and atmospheric compositions — yet their appearances are notably different. At visible wavelengths Neptune has a distinctly bluer color whereas Uranus is a pale shade of cyan.