If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.

A new solar telescope at Paranal studies the Sun to reduce stellar noise, helping scientists better detect and study ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

The interplanetary comet 3I/ATLAS is remarkably rich in a specific type of water that contains deuterium, meaning it came ...

Long before 3I/ATLAS slipped through the inner solar system, its water had already recorded the kind of place it came from.

New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, leaving a lasting imprint on the orbits of our planets. This intriguing ...