I/ATLAS isn't 'behind the Sun', explains Dr. Brandenburg. Learn why observers were fooled and how its solar pass tests Avi ...

Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside ...

Scientists closely observe the interstellar comet 3I/ATLAS, seeking to determine if it's a natural object or an extraordinary alien spacecraft.

Brian Cox has responded after an astrophysicist claimed there could be an 'alien spaceship' heading for the solar system. An ...

Scientists are watching the mysterious interstellar comet 3I/ATLAS as it makes its closest approach to the Sun. Could it be a ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

It’s not long now before we find out for sure whether Comet 3I/ATLAS is actually an intergalactic Trojan Horse sent to ...

Interstellar comet 3I/Atlas is set to reach its closest point to the sun Oct. 29. Here's what experts say as conspiracy ...

Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially ...

The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a ...

The universe has quasi-moons, mini-moons, and moonlets, but no official definition of what counts as a moon.

November's full moon will also be bigger and brighter than usual. Here is everything to know about the Beaver Moon and how to see it in Arizona.