In NASA's Apollo 11 photos, the flag appears to be waving in the breeze, despite the fact that the moon has virtually no atmosphere, meaning there’s no wind ...

"We know that the moon is vacuum with no air, so it is difficult to make a flag flutter by wind like on Earth," said Zhang Tianzhu, deputy head of the institute of future technology at the Deep ...

"We know that the moon is vacuum with no air, so it is difficult to make a flag flutter by wind like on Earth," said Zhang Tianzhu, deputy head of the institute of future technology at the Deep ...

What such a flag can't do, though, is wave majestically in the wind. This, in effect, is what the flag is doing when it's "backward." It's waving, facing forward.