Interstellar comet 3I/ATLAS is briefly out of view as it travels around the sun this week, but researchers and amateur ...

As 3I/Atlas neared its closest point to the sun in its orbit, the internet was abuzz with curiosity about the comet.

Spacecraft have revealed that the comet—which one scientist suggests could be an alien spacecraft—is now "distinctly bluer ...

Interstellar objects like 3I/ATLAS are exciting, but there is no reason to claim that they are evidence of alien spacecraft – ...

Manhattan-sized comet 3I/ATLAS — which scientists suspect could have extraterrestrial origins — will reach its closest ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in December.

Our interstellar visitor is visible again after reaching its closest approach to the Sun yesterday. The PUNCH mission, a ...

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

CNN’s Tom Foreman breaks down what we know about the interstellar comet that originated outside our solar system.