Frankly, I am quite surprised they exist at all after all of these years.
From Yahoo: ( snippet )
The photos have stood the test of time: A spacesuit-clad Apollo astronaut stands proudly next to a red-white-and-blue American flag, his national trophy telling the lonely world "the United States was here."
Unfortunately, all six flags they planted from 1969 through 1972 haven't fared so well.
Images taken by NASA's Lunar Reconnaissance Orbiter in 2012 do show that at least five out six flags still stand. However, scientists think decades' worth of brilliant sunlight have bleached out their emblematic colors.
The result? The flags are probably completely bone-white by now, as we first learned from Gizmodo. But their condition may be even worse than that.
Each one of the flags was made by the company Annin Flagmakers, woven out of rayon, and cost NASA $5.50 (more than $32.00 when adjusted for inflation). On the surface of Earth, such flags fade in sunlight. That's because ultraviolet light — the same wavelength that causes sunburn — isn't fully absorbed by our planet's atmosphere, and it excels at breaking down fibers and colors.