From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring to conquer this unassuming blue dot.

Add Yahoo as a preferred source to see more of our stories on Google. Imagine receiving an alert on your phone from a government agency at night, warning you about an alien attack, when you have ...

This short video shows what would happen if Aliens attacked our planet Earth. They would probably attack USA first, since ...