Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice ...

WASHINGTON (Reuters) - Frigid and far-flung Neptune, our solar system's outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

Welcome to the enchanting realm of Neptune. In its orbit, artists express their most profound ideas, musicians strum their guitars, and spiritualists connect with the ethers, where the boundaries ...

Planet Nine is a long-theorized super-Earth at the edge of the solar system. New research suggests it's not a planet but a gigantic disk of small bodies. Jackson Ryan was CNET's science editor, and a ...

You don’t really hear about Neptune, do you? Not as often as the other planets, certainly. Space robots regularly provide snapshots of the surface of Mars and the clouds of Jupiter. Mercury is a ...

Neptune's position in the sky is plotted on this star map, along with the 1846 predicted positions of its location, and where it was eventually discovered. The blue planet resides in the constellation ...

WASHINGTON — Frigid and far-flung Neptune, our solar system’s outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its atmospheric ...