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http://sanfrancisco.cbslocal.com/201...e-of-the-moon/

As the Apollo 10 astronauts’ journey took them around the far side of the moon, the space explorers heard what they described as “outer space type” music, recently declassified transcripts revealed.

The Science Channel series ‘NASA’s Unexplained Files” took a closer look into the sounds the astronauts heard as they lost radio contact during their trip around the moon.

“It’s about an hour on the backside of the moon, away from earth where you lose radio contact,” Apollo 15 Command Module Pilot Al Worden said in the episode.

As Apollo 10 made its way around to the far side of the moon, the astronauts lost radio contact, and began hearing the strange sounds.

“Sounds like, you know, outer-space type music,” one of the astronauts can be heard saying in a NASA recording.