Neptune’s oddball moon Nereid may be the sole remnant of an earlier system, formed near the planet rather than being pulled ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A brand-new group of frozen ...

Hundreds of thousands of icy rocks lurk around in the Kuiper Belt, a place discovered just a few decades ago, and exists far beyond Neptune. As a NASA spacecraft sojourns deeper into space, it has ...

A new study from BYU professor of physics and astronomy Darin Ragozzine and former undergraduate student Maia Nelsen provides new insight into the structure of objects in the Kuiper Belt. Using data ...

In our solar system's proverbial "no man's land," a deep space realm beyond the planets, scientists detected unexpected activity. "We see some interesting signs of hot times in cool places," ...

486958 Arrokoth in the Kuiper Belt, previously called 2014 MU69 and nicknamed "Ultima Thule" was the farthest object in the solar system visited by a spacecraft when NASA's New Horizons conducted a ...

A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.