“From the LROC images it is now certain that the American flags are still standing and casting shadows at all of the sites, except Apollo 11,” LROC principal investigator Mark Robinson wrote. “Astronaut Buzz Aldrin reported that the flag was blown over by the exhaust from the ascent engine during liftoff of Apollo 11, and it looks like he was correct!”
The original Apollo flags cost NASA $5.50 and made of nylon by Annin Flagmakers.
On the surface of Earth, even with our protective atmosphere, flags flown in bright sunlight for 44 years will fade severely. The Moon doesn’t have any protection or shade so the flags on it’s surface would have been exposed to glaring sunlight since they were planted. They are also bombarded by the Suns radiation due to not having any protection.
“Over the course of the Apollo program, our astronauts deployed six American flags on the Moon. For forty-odd years, the flags have been exposed to the full fury of the Moon’s environment – alternating 14 days of searing sunlight and 100° C heat with 14 days of numbing-cold -150° C darkness. But even more damaging is the intense ultraviolet (UV) radiation from the pure unfiltered sunlight on the cloth from which the Apollo flags were made. Even on Earth, the colors of a cloth flag flown in bright sunlight for many years will eventually fade and need to be replaced. So it is likely that these symbols of American achievement have been rendered blank, bleached white by the UV radiation of unfiltered sunlight on the lunar surface. Some of them may even have begun to physically disintegrate under the intense flux.”
Vice President Mike Pence asked NASA Administrator Jim Bridenstine to accelerate the agency’s lunar exploration plans during a National Space Council meeting held at NASA’s Marshall Space Flight Center in Huntsville, Alabama, March 26. In addition to targeting a human landing on the Moon in 2024, the council also discussed creating a new Moon to Mars Mission Directorate.
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