An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening ...

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

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

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is ...

Interstellar comet 3I/ATLAS captivated astronomers with its dramatic passage near the Sun, brightening significantly due to ...

This is only the third interstellar comet scientists have observed. Its extreme brightening, unusual composition, and intense ...

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

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

Harvard astronomer Avi Loeb has argued at length that 3I/ATLAS — the third-ever interstellar object ever detected, currently ...

Interstellar comet 3I/ATLAS baffles scientists, brightening 7x faster and turning blue. A Harvard expert suggests its strange ...

Astronomers have identified 3I/ATLAS, an ancient, ice-rich interstellar comet potentially older than our solar system.

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