In May 1969 the Apollo 10 mission headed toward the Moon. But its astronauts’ assignment wasn’t to make a lunar landing; they were merely passing as observers. But then as they traveled on the dark side of the Moon with no connection to mission control, the crew could hear a mysterious “music.”
When the Apollo 10 mission took off from Florida’s Kennedy Space Center on May 18, 1969, their destination was the Moon. But their quest was not a lunar landing. Instead, NASA had sent the crew to scope out the astronomical body before Apollo 11 took that famous giant leap two months later.