Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

Meteor showers, eclipses, a planetary parade and 13 full moons will be visible in the night sky in 2026. Here’s when to see them.

Interstellar comet 3I/ATLAS is believed to be between 8 and 14 billion years old, much older than our solar system, which was born only about 4.6 billion years ago. This dating means that it could ...