Having made its closest approach to the sun on Wednesday October 29, comet 3I/ATLAS will soon be visible from Earth ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) The interstellar comet, originally called A11pl3Z and now ...

The comet 3I/ATLAS moves against a backdrop of stars. The ATLAS survey telescope in Rio Hurtado, Chile, was the first to report that the object came from interstellar space. ATLAS / University of ...

Astronomer Avi Loeb outlines nine "anomalies" that he says support his hypothesis that interstellar object 3I/ATLAS is an ...

Folks, it’s official: the object that astronomers recently spotted blowing through the outer solar system came from interstellar space. Yesterday, the intriguing stranger was named A11pl3Z. Now, it’s ...

Astronomers say 3I/Atlas will be visible in parts of the US sky for a short time, giving viewers a unique look at a comet from beyond our solar system.

A series of three powerful flares and associated explosions of solar material out across the Solar System have set Earth ...