Neptune Facts - Science@NASA
WEBDark, cold, and whipped by supersonic winds, ice giant Neptune is more than 30 times as far from the Sun as Earth. Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.
Ice giant - Wikipedia
WEBAn ice giant is a giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Neptune, which have different formation scenarios from the gas giants Jupiter and Saturn.
Neptune - Wikipedia
WEBNeptune is the eighth and farthest known planet from the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth and slightly more massive, but denser and smaller, than fellow ice giant Uranus.
What Are Neptunian Planets? - NASA Science
WEBResearchers discovered an ice giant exoplanet 25,000 light-years away in 2014. We don’t know much about its composition, what it’s made of, or what elements are present in its atmosphere, but it’s in a similar orbit to its star as Uranus is to our Sun.
Neptune - NASA Science
WEBNeptune is the eighth and most distant planet from the Sun, and the first planet discovered with math in 1846. Learn about its blue color, supersonic winds, ice giant features, and its largest moon Triton.
In Depth | Neptune – NASA Solar System Exploration
WEBDark, cold, and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye.
10 Need-to-Know Things About Neptune - NASA Solar System Exploration
WEBNeptune is an ice giant with a dense atmosphere of hydrogen, helium and methane. It has 14 moons and faint rings, but no known liquid water or life.
Neptune: An Ice Giant With Diamond Rain - HowStuffWorks
WEBJun 23, 2023 · Learn about Neptune, the farthest and coldest planet in the solar system, and its fast winds, strange storms and mysterious moons. Find out how Neptune was predicted by math and why it's not a gas giant.
Meet our Solar System - Neptune - Space Center Houston
WEBJul 5, 2022 · Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet’s mass is made up of a hot dense fluid of “icy” materials – water, methane, and ammonia – above a small, rocky core.
Icy asteroids help the James Webb Space Telescope uncover …
WEBMar 7, 2024 · In examining a pair of icy asteroids at the edge of the solar system, the James Webb Space Telescope is helping scientists understand the evolution of an ice giant: Neptune.