In the new movie “Independence Day: Resurgence,” opening in theaters today (June 24), Earth will once again gear up for an epic fight with a hostile alien race. The premise will set up some awesome action sequences, but how realistic is the idea that if aliens were to visit Earth, their one goal would be to destroy us? What do the experts think? Renowned physicist Stephen Hawking has said repeatedly that he’s afraid of aliens wiping out the human race the way a human would wipe out a colony of ants. Three spacecraft currently heading out of the solar system — the Pioneer probe and the two Voyager probes — contain maps that point the way back to Earth. And there continue to be initiatives to put messages for aliens on spacecraft. When the NASA New Horizons probe finishes its Pluto and possible Kuiper Belt work, some people are hoping to create a crowdsourced message for aliens to upload to its hard drive. Some researchers, however, aren’t sure it’s such a good idea to shift SETI efforts from just listening to actually sending out signals.
http://www.space.com/33266-would-aliens-kill-humans-movie-style.html
