"It tells us that the ingredients for life's chemistry are not unique to our own." The post Interstellar Object Is Spraying ...

As the massive interstellar object 3I/ATLAS completes its close flyby of Mars, a fleet of international orbiters is capturing ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

The object, which was confirmed to be an interstellar comet with its own dusty coma ... or 5×10 kilograms (500 quadrillion kilograms), C/2014 UN271 (Bernardinelli-Bernstein) still has it beat. But ...

"As far as I know, there are no protocols for responding to the discovery of functioning alien devices near Earth." ...

If the astronomer's hypothesis is right, it could mean that the interstellar object is linked to alien technology.

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...

For over two months, astronomers have been closely following an interstellar object — dubbed 3I/ATLAS — as it screams through the solar system at a breakneck speed. The unusual visitor was only the ...

When you think of the stereotype of someone who believes in aliens, you just might picture a paranoid person in a tin foil hat. Well, one the most famous "believers" in the world is a dapper, and ...