Astronauts who flew to the rehearsal of the first landing on the moon reported that they had heard the mysterious “type of space music” in May 1969.
The case of an incomprehensible inexplicable whistle was shown during the upcoming episode of the Science Channel series “NASA unexplained files”. The episode focused on the strange event that Apollo 10 mission members encounter on the moon. They entered lunar orbit and surveyed at a distance of 5,000 feet from the surface of the moon in preparation for the historic flight of Apollo 11, which took place two months later.
The voices of Apollo 10 astronauts — Thomas Stafford, John Young Eugene Cernan — can be heard on the flight recordings. And they talked about some strange sound and discussed whether NASA should report this phenomenon.
“It's very similar, you know, to some type of music in outer space,” said one of the astronauts.
First part of the trailer “Unexplained NASA Files”:
“Should we report this?” Asks the astronaut.
“I don't know,” answers the second. “We have to think it over.”
There is no record of how astronauts discuss noise with NASA or the public. It is not clear whether there were still astronauts who had ever heard a noise in the subsequent passes on the far side of the moon, or whether there was someone else who caught this sound during the mission. The young man eventually flew to the moon and ascended to her as the commander of Apollo 16. Cernan commanded the Apollo 17 mission and was the last man to set foot on the moon. Stafford again flew into space, but never traveled to the moon. 2nd part of the trailer “Inexplicable NASA Files”:
These recordings were made in May 1969 during a relationship with Earth, when Stafford, Young and Cernan were on the far side of the moon. The whistle lasted for an entire hour, while the astronauts were out of reach. The recordings were later sent back to flight control, where they are overwritten, archived and classified according to protocol.
This conversation was ultimately discovered in 2008.
Some technicians suggested that the sound may have originated from interference in the VHF radio when the command and lunar module interacts. This thought was voiced by the researcher and author Andrew Chaykin.
But not everyone is led to this explanation.
“The Apollo 10 crew is used to the kinds of noise they need to hear,” said the pilot of the Apollo 15 Command Module Al Worden in the episode clip. “Logic tells me if something was written down, it means there was something there.”