An explorer in 1909 claimed he found an ancient underground city inside the Grand Canyon—filled with rooms, hieroglyphs, and ...

Potential extreme weather conditions could pose a danger to users of Township roads, sidewalks, and bike lanes ...

Interstellar object 3I/ATLAS, the third such visitor ever observed, is exhibiting unusual energy and chemical behavior as it ...

Harvard's Avi Loeb warns interstellar comet 3I/ATLAS could be alien tech. Experts weigh in on planetary defence and the risks ...

Abraham ‘Avi’ Loeb, a Harvard University astrophysicist, spends most of his waking hours thinking about a giant rock. The rock’s name isn’t too catchy, 3I/ATLAS, and according to some, it’s more of a ...

For only the second time ever, a collision between two asteroids has been observed around an alien star not too far beyond ...

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

On Friday, interstellar comet 3I/ATLAS makes its nearest approach to Earth. Here's what you need to know, and how to track ...

Is 3I/ATLAS a comet or an alien ship? Harvard's Avi Loeb warns of a 'serial killer' visitor as the interstellar object makes ...

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