Strange Music Was Heard By Apollo 10 Astronauts On The Dark Side Of The Moon

A dress rehearsal for the first lunar landing was carried out by Apollo 10 in May 1969. The three-person crew successfully completed the mission, spending more than 10 hours in lunar orbit then separating and reuniting with a lunar landing module.

The astronauts claimed to have heard a "whistling sound" while they were up there by themselves on the far side of the Moon; one stated it "sounds like, you know, outer-space music." For over 50 years, the noises, which were captured by cameras on board Apollo 10, were kept secret from the general public.

Astronauts Thomas Stafford, John Young, and Eugene Cernan of Apollo 10 spoke about the eerie sound they heard, according to transcripts:

Cernan: Whooooooooooo.

Young: Did you hear that whistling sound, too?

Cernan: Yeah. Sounds like – you know, outer-space-type music.

Young: I wonder what it is.

NASA alerted the Apollo 11 crew to listen out for the noises, including Michael Collins, who piloted the command module by himself as Neil Armstrong and Buzz Aldrin headed for the Moon's surface.

Collins recorded the creepy woo-woo sound as an odd noise in his headset in his book carrying the Fire: An Astronaut's Journeys. "I would have been terrified to death if I hadn't been warned about it."

The lunar module (LM) began to make noise once it disengaged from the main module, and it stopped after it touched down on the moon. Fortunately, it had already been explained by the time Collins heard the noise, which also occurred to be when NASA was expectedly out of communication for an hour.

Instead of UFO enthusiasts, radio technicians had a ready explanation for it, according to Collins. "There was VHF radio interference between the LM and Command Module." When NASA made the video footage public in 2016, they endorsed this reasoning.

NASA's Unexplained Files, a series on the cable network Discovery, featured the tale behind these strange whistling noises on Sunday night.

According to the Discovery show, the trio thought the noises were so peculiar that they discussed whether or not to inform NASA's top officials for fear they wouldn't be taken seriously and may be eliminated from next space missions. According to NASA, the noises were not music from another planet. According to a US space agency expert, the noises were probably generated by radio interference from nearby radios in the command module and lunar module.

Apollo 15 astronaut Al Worden refuted the theory, saying, "Logic tells me that if there was something recorded on there, then there's something there," as reported on the Discovery show.

However, Michael Collins, the pilot of Apollo 11, claimed to have also heard "an eerie woo-woo sound" but accepted the explanation of radio interference. He was the first person to fly around the far side of the Moon on his own while Buzz Aldrin and Neil Armstrong were still on the surface.

In reality, he had been forewarned beforehand, the author of Carrying the Fire: An Astronaut's Journeys said. If I hadn't been warned about it, I would have been terrified to death, he stated. It was interference between the LM's and Command Module's VHF radios, which fortunately the radio specialists (rather than the UFO enthusiasts) had an easy answer for.