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

In 1994, the fragments of the Shoemaker-Levy 9 comet smashed into Jupiter with a force equal to 300 million atomic bombs.

The interstellar comet 3I/ATLAS, discovered by NASA, is set to make its closest approach to Earth tonight. Despite the buzz, it poses no threat to our planet.

Comet 3I/ATLAS, the rare interstellar object, makes its closest approach to Earth tonight, offering a unique chance to observe it. Learn the exact date, time, distance, and how to watch it both in the ...

While the comet will remain visible to telescopes for several months, tonight marks the moment it is nearest to Earth, making ...

I/ATLAS interstellar comet or alien spacecraft? NASA released new images of comet 3I/ATLAS after a rare flyby near Earth.