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Planet Neptune Overview. Dark, cold and whipped by supersonic winds, giant Neptune is the eighth and most distant major planet orbiting our Sun. More than 30 times as far from the Sun as Earth, Neptune is not visible to the naked eye. In 2011, Neptune completed its first 165-year orbit since its discovery.
May 3, 2024 · Recent News. Apr. 30, 2024, 6:05 AM ET (Space.com) Evidence for Planet 9 found in icy bodies sneaking past Neptune. Apr. 21, 2024, 11:11 PM ET (NASA Science (.gov)) Discovery alert! An Earth that looks like Neptune. Apr. 20, 2024, 6:13 AM ET (TechSpot) Astronomers gather additional evidence suggesting Planet Nine is real.
Neptune is the eighth and farthest planet from the Sun in the Solar System. It is an ice giant. It is the fourth-largest planet in the system. Neptune's mass is 17 times Earth 's mass and a little bit more than Uranus ' mass. Neptune is denser and smaller than Uranus.
Dark, cold and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. Neptune is the only planet in our solar system not visible to the naked eye.
Orbit and Rotation. One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days). Sometimes Neptune is even farther from the Sun than dwarf planet Pluto.
Mar 28, 2019 · March 28, 2019. • 6 min read. Neptune may seem like a serene sapphire world at first glance. But don't let its quiet azure hues fool you: The eighth planet from the sun is a wild child. Neptune...
May 6, 2024 · It's the last of the planets in our solar system. It's more than 30 times as far from the sun as Earth is. 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.
