Interstellar comet 3I/ATLAS has given astronomers an opportunity they rarely expect to receive. Unlike the countless icy ...

This was Virgin Galactic's VSS Unity's last flight. Six passengers and crew flew to an altitude of 54.4 miles (87.5 km).

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

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

What can 3I/ATLAS teach astronomers about the origins of life?

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

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

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

Delays and rising prices have made the promise of space travel for ordinary people more elusive than ever. Will that ever ...

A new study into the 3I/ATLAS interstellar comet points to it having been born as far back as 12 billion years ago in a very ...