Global warming is something that we are very aware of, but have you thought about its impact beyond the planet? A joint project between NASA's Planetary Science Division and Penn State University have stumbled upon something in their research to find out whether alien contact would hurt or harm us. According to this article, aliens may destroy humans in order to save the galaxy. Hang on, don't head to the bunkers just yet. This is just a theory that researchers think may happen if the effects of global warming on our planet start to contaminate the rest of the galaxy and universe. Other theories include an alliance between human and aliens (to ward off other aliens), indifference (we