It happens all the time in science fiction stories: aliens park their vessels in Earth orbit, and things go pear-shaped. But what if this scenario unfolded in real life? What would be the best thing for us to do? We asked several anthropologists the best way to go about communicating with truly unknown life forms.
We're living on a planet with an expiration date. One day, Earth will die or explode — and if we're lucky, some of us won't be there. Science fiction is full of stories where we abandon a dead Earth, including the upcoming films Oblivion and After Earth. Here are all the reasons people leave Earth for dead in science…
This was cool - they even had jet packs!