Astronomers have discovered that the largest comet from the Oort Cloud, a shell of icy bodies at the very edge of the solar system, is bursting with chemical activity.

Perplexity's Comet AI browser is now available on select Windows PCs, bringing its famed agentic experience to more users.

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first spotted on July 1 by the NASA-funded Asteroid Terrestrial-impact Last ...

NASA discovered the third interstellar comet through a survey telescope in Rio Hurtado,Chile on Monday.

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth — but closer to the red planet than us at a safe 150 million miles away.

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth — but closer to the red planet than us at a safe 150 million miles away.

New interstellar comet will keep a safe distance from Earth, NASA says NASA has discovered an interstellar comet that's wandered into our backyard ...

NASA has discovered an interstellar comet that's wandered into our backyard.

New Interstellar Object Comet 3I/ATLAS—What We Know So Far as It Zips through the Solar System All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar ...

The interstellar comet, originally designated C/2025 N1 (ATLAS), was observed on July 1 by the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in Rio Hurtado, Chile.