The White House has lifted the lid on the shock extent of an "alien invasion" which has blighted US soil for the past six ...

The White House launched a website teasing new information on extraterrestrials this week, but it actually delivers immigrant arrest data.

Not every alien is trying to invade Earth, but if you're looking for the thrills and danger of an alien invasion, you can't ...

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 ...