Since the beginning of time, humans have looked to the stars and wondered if we are alone in this universe. Science fiction ...

The alien invasion storyline is one of the classic and most reliable premises in sci-fi history. It's an easy way to introduce a potential threat to humanity and explore the idea of confronting the ...

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 ...

The night is dark; darker than usual. There's a warm breeze in the air, but otherwise nothing stirs save for a strange metallic object careening through the sky. As it moves, a soft glow follows, ...