Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

(NASA, ESA, CSA, STScI via AP) CAPE CANAVERAL, Fla. (AP) — Neptune and its rings haven’t looked this good in decades. NASA released new glamour shots of our solar system's outermost planet Wednesday ...

Astronomers directly detected the light emitted by a sub-Neptune exoplanet -- a ... Feb. 8, 2023 — Scientists have discovered a new ring system around a dwarf planet on the edge of the Solar System.

US-based space agency NASA has announced that its James Webb Space Telescope has captured the clearest view of Neptune 's rings in more than 30 years. Most striking in Webb's new image is the ...

Though they are different colors (Neptune is bluer than Uranus' cyan hue) and have different numbers of rings and moons, both planets are ice giants that are similar sizes at just over 30,000 ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

James Elliot and team discovered Uranus' rings via stellar occultation. NASA's Voyager 2 later revealed more details on its ...