As of now, there are six American flags planted on the Moon. These flags were placed by the Apollo missions, with Apollo 11, 12, 14, 15, 16, and 17 all landing on the lunar surface and erecting the flag during their missions.
Each flag symbolizes the achievements of these missions, marking America’s accomplishments in space exploration during the late 1960s and early 1970s. It’s worth noting that these flags have been subjected to harsh lunar conditions, including extreme temperatures and intense radiation, which have likely affected their appearance over time. Some of the flags may have faded or been damaged, but they remain important historical artifacts on the Moon.