The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

While online conspiracies swirl, comet 3I/ATLAS made a close pass by Earth on Dec. 19, giving astronomers a rare glimpse of a ...

A mysterious object has been identified as an “interstellar visitor” by NASA while shooting through our solar system, sparking discussions about its origin and nature. A Harvard astrophysicist ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

Harvard scientist Avi Loeb claims the interstellar object 3I/ATLAS may be alien technology sent to seed life on Earth, sparking a debate with sceptics who insist it is merely a comet.

I admit it. I was utterly swept up by the 3I/Atlas mania earlier this fall.

Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...

Atlas will race past Earth at 130,000mph, coming within 170 million miles, roughly twice as far away as the sun. Scientists ...

An astrophotograph of the interstellar comet known as 3I/ATLAS highlights its green coma and a wandering blue-tinted ion tail. (Copyright Victor Sabet and Julien De ...

The question sounds ripped straight from a sci-fi blockbuster like Arrival or 2001: A Space Odyssey, yet it became a very real source of furious, months-long online debate. The cosmic object at the ...

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.