Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

The ESA/NASA Solar and Heliospheric Observatory (SOHO) has officially discovered 5000 comets. Comet number 5000 was spotted ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

An interstellar comet that recently passed through the solar system may have formed as long as 12 billion years ago, making ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

Astronomers first spotted Comet 3I/ATLAS in June 2025, and it was later confirmed as an interstellar visitor that originated ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Pan-STARRS, also known as comet C/2025 R3 (Pan-STARRS) ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This voice experience is generated by AI. Learn more. This ...

Researchers say 3I/ATLAS could be 12 billion years old and has a composition unlike anything in our solar system.