A comet traveling outside the solar system and heading toward the Earth is much larger than scientists first believed, a ...

Our solar system’s third discovered interstellar visitor, comet 3I/Atlas, will dip into the glare of the Sun this week, ...

Astronomers are tracking a newly discovered interstellar visitor called 3I/ATLAS, and early research suggests it may be ...

Comet 12P/Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com ...

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 ...

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

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

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

On July 1, the ATLAS (Advanced Technology Large-Aperture Space) telescope discovered comet 3I/ATLAS, "the third object from outside our solar system to be discovered so far," accor ...

A supermoon will hang in the night sky bigger and brighter than usual during its perigee, and a great time to head outside to ...

I/ATLAS stands apart from other interstellar objects because of its size as well as pace, and will soon disappear from ...