American Flag Looks Like It Is Flapping In The Wind

If you look at the American flag in still pictures from the Apollo 11 mission, it appears to be flapping in the wind.But how can that be, since there's no wind on the moon?The simple answer is, it isn't flapping, Fienberg says.That's because it isn't an ordinary flag.If the astronauts had planted a regular flag on the moon, it would've hung slack like flags do on Earth when there's no wind.The Apollo 11 astronauts had trouble extending the rod all the way, and in still pictures, this creates a ripple effect that makes the flag look like it's waving in the wind.