planetesimal

Astronomers See the Wreckage Where Planets Crashed Into Each Other in a Distant Star System

Our Solar System was born in chaos. Collisions shaped and built the Earth and the other planets, and even delivered…

3 years ago

Tiny Object Found at the Edge of the Solar System for the First Time. A Kuiper Belt Object that’s Only 2.6 km Across

The Kuiper Belt, or the Edgeworth-Kuiper Belt, is home to ancient rocks. Kuiper Belt Objects, or KBOs, are remnants of…

6 years ago