The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is being visited by creatures from light-years away.

Add Yahoo as a preferred source to see more of our stories on Google. Spielberg and ET looking at each other - Aaron Rapoport/Getty Images Steven Spielberg might be best known for "Jaws" and "Jurassic Park", but it's aliens where Spielberg seems to keep ...