The moon, Saturn and Neptune will rise a little before midnight for those in the U.S. Heads up stargazers! The moon will rise ...

Astronomers have discovered an object at the edge of the solar system that is locked in a strange rhythmic dance with the ice ...

A team of astronomers discovered a strange object in the outer solar system that is in a resonant orbit with Neptune.

An oddly tilted object beyond Neptune moves in perfect sync, one orbit for every ten of Neptune’s, and scientists are ...

Images of Uranus and Neptune released after the Voyager 2 flybys in 1986 and 1989 compared with a reprocessing of the individual filter images in this study.

There is no danger of 2020 VN 40 colliding with Neptune, as the orbit of this distant world is very inclined with respect to ...

The dark spot on Neptune was strange, however, because it disappeared after Voyager 2's observations. Then, in 2018, the Hubble Space Telescope detected several new Neptunian dark spots in both ...

Over the past few years, the white clouds that usually shroud Neptune’s surface have disappeared, and it may be because of changes in the sun’s activity over its 11-year cycle ...

Neptune, for example, has an atmosphere made of hydrogen and helium (with just a tinge of methane), and it doesn’t really have a surface—or, at least, not what we think of as a surface.

With Pluto spending 20 years of its 248-year orbit within the orbit of Neptune, you might expect that at some point, the two worlds could catastrophically collide. However, Pluto and Neptune never act ...