People were allegedly advised to call the United Nations' "alien communications specialist" if they made contact with ...

For decades, scientists have searched the cosmos for evidence of intelligent life beyond Earth. A new study suggests that if extraterrestrial civilizations have attempted to communicate with us, there ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...