Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope ...

The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) instruments aboard ESA's Jupiter Icy Moons Explorer ...

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

Astronomers have revealed that the interstellar comet 3I/ATLAS, officially discovered on July 1, 2025, was actually captured ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place before our solar system existed.

Known as C/2025 R3 PANSTARRS, the comet will be visible to stargazers using a telescope in New Zealand, Australia and South ...

A medieval monk may have beaten Edmond Halley to one of astronomy’s greatest discoveries by nearly 700 years. Researchers say ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A brightening comet reaches a key moment on Sunday morning ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. A new comet barreling toward the sun could turn out to be a truly ‘Great Comet’ in April — ...