The recent revelations have disclosed a mysterious experience of NASA’s Apollo 10 astronauts. NASA didn’t make it public at that time for the sake of public. NASA’s Apollo 10 astronauts claimed that they heard a mysterious sound on the ‘Far side of the moon’, also known as ‘Dark of the moon’. This portion, being away from the exposure to earth, is not expected to provide such sound. A few scientists claimed that this sound was due to interference of radio signals, produced from two spacecrafts, but the astronauts deny so.