On 1 July 2025, astronomers using the ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, detected a faint, fast-moving object unlike anything seen before.

An ancient comet discovered in our solar system this summer is offering a rare opportunity to learn more about distant planetary systems far beyond the reach of any spacecraft, researchers say. The ...

Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner ...