Рrofessor Stephen Hawking as given out a chilling warning about making the first contact with aliens as he believes that if contact is made aliens would kill humans and take over Earth.
Hawking believes that aliens are not going to like the first contact with humans from Earth and has warned that people should be hesitant to make contact. He went on to talk about the planet Gliese 832c, which is a very hot super-Earth that was found just earlier in the year and which is said to have the potential for supporting alien life.
Hawking Suggests Alien Contact Could Be Same As Columbus – Native American Meeting
Hawking said that one day earthlings could get a signal from such a planet but that people should be wary of answering back to any signal from alien life. He went on to say that meeting alien life that is advanced would be very much like Native Americans and Columbus first meeting. He pointed out that the meeting had not gone down well.