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 ...

3I/ATLAS mystery: Why Harvard scientist fears humanity is unprepared for alien invasion

When you hear that a giant, icy mass hurtling through space has entered our solar system, your mind might leap straight to ...