"That's one small step for [a] man, one giant leap for mankind" (the "a" was apparently lost in transmission due to static). Apparently Neil Armstrong's boots (size 9 1⁄2 medium) are still on the moon. There are not alone because there are another nine pairs of boots worn during the Apollo missions abandoned on the surface of the moon. Apollo astronauts collected moon rocks and because of the fine balance of weight had to jettison their footwear. There is no oxygen on the moon so the metal buckles and snaps will not rust but the silicone soles and synthetic fabrics that made up the boots will probably have off-gassed and degraded. Should anyone in the future try to retrieve them, there is every chance the shoes would turn to powder if touched.