3I/ATLAS was just a comet – but could we have defended ourselves if it was aliens?

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

'Alien battleship' reaches closest point to Earth

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