However, at Neptune’s surface, the gravity is only about 1.1 times the gravity we experience on Earth. In other words, if ...

At this point in Neptune's 164-Earth-years-long orbit around the sun, its northern pole is just out of view from the JWST's position almost 1 million miles (1.5 million kilometers) from Earth.

Because the planet is tilted away from Earth and takes 164 years to orbit the Sun, astronomers have not yet had a good look at its north pole. Webb also spotted seven of Neptune's 14 known moons ...

NASA’s Voyager 2 spacecraft found hints of auroras on Neptune in 1989, but scientists couldn’t get a clear picture then. Using Webb’s near-infrared instrument in June 2023, they not only got ...

Space Neptune isn't as blue as we thought it was. An analysis of photos taken by Voyager 2 in the 1980s shows that Neptune and Uranus have a similar pale blue hue as perceived by the human eye ...

In the case of Uranus, the core is the size of Mercury, and Neptune’s is slightly larger, more Mars-size. Previously, scientists had thought the interiors of the two planets would be more mixed.