Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

NASA is tracking an object that is entering the solar system at approximately 245,000 km/h. This interstellar visitor is ...

A comet speeding towards the inner solar system, where Earth is located, is significantly bigger than initially thought, ...

Comet C/2025 R2 (SWAN) is a new visitor from our outer solar system. It may be easier to see as it approaches Earth next week ...

Comet 3I/ATLAS, the third interstellar object ever detected, will be visible from ground-based telescopes through the end of ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system.

I/Atlas comet, which is 40 times brighter at present, will reportedly be struck by a CME released on September 19, 2025.

I/ATLAS, the mysterious interstellar object long suspected to be alien tech, has survived a direct hit from a massive solar eruption.

Astronomers are racing to study 3I/ATLAS, an interstellar comet whose strange behavior reveals new clues about how other ...

Comet C/2025 R2 (SWAN) was discovered on Sept. 11 by amateur astronomer Vladimir Bezugly in images from NASA's Solar and ...

In July, NASA reported its ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Chile identified a comet ...

Astrophysicist Avi Loeb, the former chairman of Harvard's Department of Astronomy and current head of Harvard's Galileo Project, which searches for ...