The big screen has played host to many epic alien invasions, but so have our TVs, and here's the five best alien invasions ...

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 ...

It sounds like a plot ripped from a Hollywood script: a shadowy global elite, seeking total control, manufactures the ultimate crisis to unite the world under a single authoritarian government—a fake ...

Add Yahoo as a preferred source to see more of our stories on Google. Some of the greatest sci-fi movies of all time revolve around humans in a desperate struggle for survival. Sometimes we're ...