Neil Armstrong, the first human to walk the moon, it was a small step for man but a giant leap for mankind. He had said this as he believed that humans had achieved the glory of reaching the moon and that was a great accomplishment. Little did he know that a huge surprise was waiting for him on the lunar surface! If secret sources are to be believed, Armstrong was not the first man to walk the moon, but he was also the first man who had encounters with aliens on the lunar surface. Here are some evidences that he had met aliens on the moon.