For generations, the idea of an alien invasion has captured our imagination. Movies, television shows, books, and conspiracy ...

The chances of encountering an alien are slim, but it doesn’t hurt to be prepared. In the unlikely event of meeting an extraterrestrial being, senior astronomer Seth Shostak of the SETI Institute, a ...

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...

Imagine a time when spaceships suddenly appear in the sky, and hostile aliens start to pummel the planet. People in Alabama will have several advantages if they’re faced with extraterrestrial foes — ...