The Kuiper Belt could extend billions of miles farther than anyone thought. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's New Horizons ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

Far beyond Neptune, astronomers have finally confirmed a compact clump of icy worlds hiding inside the Kuiper Belt, a feature ...

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 ...

The Solar system is bigger than NASA thought. There are a lot of huge objects at the edge of the solar system that we have not seen but can indirectly estimate. When astronomers say Kuiper Belt Object ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. 2023 KQ14, nicknamed “Ammonite,” is a trans-Neptunian object ...

Astronomers searching for the faintest glimmers of light beyond distant Pluto say they’ve discovered a new dwarf planet – and that this planetoid’s movements hint that an invisible giant planet ...