"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 ...

A massive comet known as 3I/ATLAS that was first discovered zooming across the solar system over the summer showed signs of ...

Here's where Comet 3I/ATLAS, Lemmon and SWAN are in the Halloween sky.

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 ...

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

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

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

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

The comet's green glow is caused by fluorescence of diatomic carbon (C2) when exposed to ultraviolet sunlight, not reflection.

The nights drew in and the mornings turned colder in Gloucestershire during the first week after the clocks went back. People ...