We know there is no atmosphere on the Moon and since there is no air, there is no wind. Yet, how is the American flag fluttering on the Moon?
The fact that there is no wind on the Moon mainly refers to the wind caused by weather or atmospheric changes. However, the Moon has wind, which is called solar wind or artificial wind. Solar wind is a stream of charged particles ejected from the upper atmosphere of the Sun. It is due to this artificial wind that the flag flutters.