In this curious film, a pair of friends venture out into the desert to build an accurate to scale model of our solar system.

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...