The Kuiper belt, named after astronomer Gerard Kuiper, is a massive, icy region of our solar system that exists just beyond the planets. Actually shaped more like a doughnut than a flat belt, the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. This image of Pluto was made after the New Horizons spacecraft flew past the dwarf planet on July ...

Researchers simulated how gravitational collapse forms two-lobed contact binaries in the Kuiper Belt without destructive collisions.