Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 20 beginning at 1:30 p.m.

Named after the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey that first detected it, 3I/ATLAS includes the “I ...

Beginning Monday afternoon, comet Lemmon will pass about 56 million miles from Earth, while comet Swan will soar even closer, ...

In a first, researchers have discovered fragments of Earth's precursor that contain distinctive chemical fingerprints in ...