Plans were in place to sever all communication with astronauts on the moon if they had been stranded by a technical failure.
NASA Astronaut Owen Garriott successfully pranked flight controllers by playing a recording of his wife whilst on SkyLab. There were no women on board the space station and was used to make it look like there was a stowaway.
In 1962 astronaut Scott Carpenter spent a total of 28 days below the surface of the Pacific Ocean, close to the La Jolla, CA coast, in the SEALAB II experimental underwater habitat. This was a world record and quite a feat considering the dangers of saturation diving. Congratulations were clearly in order and the consummate politician President Lyndon Johnson did not skip a beat. Carpenter, aided by Capt. George F. Bond, USN, M.D., was to call the President to receive his congratulations.
Astronaut Scott Carpenter spoke to President Johnson 200 ft below the surface of the ocean, but he was in a decompression chamber with a helium atmosphere and nobody could understand what he was saying.
Apollo Mission astronauts have nearly five times higher mortality from cardiovascular disease than other astronauts due to exposure to deep-space radiation.
An Apollo astronaut lost his wedding ring during his trip to the moon… and found it again during a spacewalk.
Astronaut John Glenn became the oldest person in space at 77 after “lobbying NASA for two years to fly as a human guinea pig for geriatric studies”.
On Space Shuttle Endeavor, astronaut John Grunsfeld called into NPR’s Car Talk and asked why his government vehicle was shaking violently for a couple minutes before the engine died.
Astronauts in the Apollo program reported seeing “streaks” of white light every 3 minutes, even when they closed their eyes.
If an astronaut “loses it” in space, part of the protocol is to restrain them with duck tape.
Apollo 12 commander Pete Conrad’s first word upon setting foot on the Moon was “Whoopee!” in order to win a $500 bet with an Italian journalist that NASA didn’t script astronaut declarations.