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

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 ...

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 ...

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; ...