Alien Spaceships?

No, I'm afraid Independence Day isn't really coinciding with Independence Day. Instead, what you see here is a picture of a rare weather phenomenon called a "gravity wave." Taken by KCRG in Cedar Rapids, Iowa, these pictures show us something that is usually invisible - air moving up and down in atmospheric wave patterns.

Yes, I know that KCRG says that this phenomenon has no name, but I tell you it does! At least, according to this scientific site!

Gravity waves, not alien spaceships.