Lost Recordings From Apollo 10 Reveal Astronauts Heard Unexplained 'Music' On The Far Side Of The Moon

February 21, 2016

It was 1969 when Apollo 10 entered lunar orbit, which included traversing the far side of the moon when all spacecraft are out of radio contact with Earth for about an hour and no one on Earth can see or hear them.

But the crew of this mission has revealed something very startling: they encountered eerie music-like radio transmissions coming through their headsets, and didn't know whether or not to report it to NASA.

music heard on moon
NASA

Almost four decades went by before the lost recordings emerged containing "strange, otherworldly music coming through the Apollo module's radio," according to the upcoming Science Channel series, "NASA's Unexplained Files."

The taped recordings also feature conversations between the three astronauts:

"It sounds like, you know, outer space-type music."

"You hear that? That whistling sound? Whooooooooo!"

"Well, that sure is weird music!"

The unexplained 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:

"It's unbelievable! You know?"

"Shall we tell them about it?"

"I don't know. We ought to think about it."

"The Apollo 10 crew was very used to the kind of noise that they should be hearing. Logic tells me that if there was something recorded on there, then there was something there," Apollo 15 astronaut Al Worden says on the Science Channel program. "NASA would withhold information from the public if they thought it was in the public's best interest."

The transcripts of the Apollo 10 mission were classified and untouched in NASA's archives until 2008, producing an ongoing debate as to the nature and origin of the strange sounds heard by the astronauts.

"You don't hear about anything like that until years after the incident occurs, and then you kind of wonder, because it's such an old memory of those things that you get concerned about if they were making something up or was there something really there? Because you never really know," Worden told The Huffington Post.

music on moon apollo 10
Pilot Al Worden / NASA

"If you're behind the moon and hear some weird noise on your radio, and you know you're blocked from the Earth, then what could you possibly think?" Worden said.

Watch this entire incident unfold on Science Channel's "NASA's Unexplained Files" returning Feb. 23. Check out the preview below:

(h/t) Huffington Post.

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