Two months before the famous Apollo 11 moon landing mission in 1969, Apollo 10 entered lunar orbit, which included traversing the dark side of the moon, a place where all spacecraft are out of radio contact with Earth for about 1-hour. Recently declassified tapes reveals that all was not as it seems, as these recordings contained “strange, otherworldly music coming through the Apollo module’s radio.” Click here to view more images from the Apollo 10 mission. Continue reading for another video and more information.
“The conversation between the three astronauts indicated they heard sounds like they had never heard before. The unexplained ‘music’ transmission lasted almost an hour, and just before the astronauts regained radio contact with Earth, they discussed whether or not to tell Mission Control what they had experienced,” according to Huffington Post.