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

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

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

Interstellar comet 3I/ATLAS is about to vanish from view. Earth and this interstellar interloper will be on opposite sides of the Sun for a little while. The glare of our star will be blocking the ...

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

Scientists say 3I/ATLAS, one of the rarest comets ever seen, likely isn’t alone and that more interstellar objects may soon be on the way.

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 ...

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...

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

On July 1, the Asteroid Terrestrial-impact Last Alert System (ATLAS) detected what was first believed to be an asteroid. As calculations for its orbit progressed, it was found to be from outside our ...

Comet SWAN isn't the biggest or brightest comet that can be seen from Earth, but it could be the last one until Halley's ...

Two meteor showers are coming up in October 2025; The showers will include a display of the Draconids, and also the Orionids; ...