NASA released this close-up, time-lapse movie in 2012. It’s really wonderful. Swedish photographer Peter Rosén captured these images of moving noctilucent clouds – sometimes called night-shining clouds – over Stockholm, Sweden on the evening of July 16, 2012. Rosén said:
What looked like a serene view from a distance behaves more like a stormy sea with wave after wave rolling in.
Want to know more about noctilucent clouds? Here’s a whole article about them.