Neptune ～年夏天線上看| 最新電影| 小鴨影音| (2015) 線上看HD線上看-1080p|4K

Neptune - Wikipedia

Neptune is the eighth and farthest-known planet from the Sun. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth, slightly more massive than its near-twin Uranus..

Overview | Neptune – NASA Solar System Exploration

Neptune is very similar to Uranus. It's made of a thick soup of water, ammonia, and methane over an Earth-sized solid center. Its atmosphere is made of hydrogen, helium, and methane. The methane gives Neptune the same blue color as Uranus..

Neptune | Facts, Moons, & Size | Britannica

Neptune, third most massive planet of the solar system and the eighth and outermost planet from the Sun. Because of its great distance from Earth, it cannot be seen with the unaided eye. With a small telescope, it appears as a tiny, faint blue-green disk. It is designated by the symbol ♆..

Neptune facts and information - Science

Neptune is the most distant of the solar system's eight planets. Find out about the blue world's orbit, which of Neptune's moons is the largest, and how the planet is home to the most severe....

All About Neptune | NASA Space Place – NASA Science for Kids

Neptune is very similar to Uranus. It's made of a thick fog of water, ammonia, and methane over an Earth-sized solid center. Its atmosphere is made of hydrogen, helium, and methane. The methane gives Neptune the same blue color as Uranus..

In Depth | Neptune – NASA Solar System Exploration

A giant planet, Neptune's atmosphere is made of hydrogen, helium, and methane. These components, specifically methane, are what give the planet its blue color. This is because methane's gaseous composition absorbs red light and reflects blue light outward..