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

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

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

He cited the astronomical gaffe in January, when The Minor Planet Center in Cambridge, Mass., announced the discovery of an ...

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 ...

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.

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

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 ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth this week, sparking alien theories and global interest as ...