A photographer who captured a comet in the night sky above the Yorkshire Dales said he spent weeks waiting for the perfect ...

Avi Loeb, Harvard astrophysicist and longtime proponent of the possibility that certain celestial objects could be artificial ...

A photographer says he feels "very lucky" to have captured Comet C/2025 A6 as it appeared over the Lancaster bomber sculpture ...

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

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

"The implication of alien technology would be huge and therefore we must take it seriously,” Harvard's Avi Loeb told Newsweek ...

The interstellar invader Comet 3I/ATLAS is continuing to surprise scientists, this time by brightening at an unexpectedly ...

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

The comet could be older than our solar system. The comet is also distinct because nickel vapor was detected in the gas ...

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

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

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