They don't.
The wave in the american flag is TRANSVERSE WAVE
transverse wave
Wave of the Flag - 1955 was released on: USA: 14 May 1955
No, a flag cannot wave in space where there is no atmosphere to create wind.
Yes, a flag waving on a pole is an example of a transverse wave. In transverse waves, the particles of the medium vibrate perpendicular to the direction of the wave propagation. In the case of a flag waving, the fabric moves up and down (perpendicular to the pole) as the wave travels along the flag.
Waving flag by K'naan
yes but only if some one is waving it other wise no as space is a vacuum and has no air to push the flag. there was a metal bar holding p the flag on the moon by the way
Wave your flag.
The cast of Wave a Red Flag - 2009 includes: Lisa Cromarty Monique Mojica
The way the person chooses to wave the flag.
The flag placed on the moon during the Apollo missions appears to "wave" in photographs and videos due to its design and the movement created during its placement. In the vacuum of space, there is no wind to cause the flag to flutter, so the motion seen is likely from the flag being unfurled and the inertia created by the astronaut handling it.