Cloud porn: Watch as a swirl of clouds materializes into a beautiful, nearly perfect circle

A striking circle of clouds with a bullseye center is seen over Asia in a high-resolution satellite image, and an animation of multiple images
We're accustomed to seeing satellite images of clouds organized in big swirly circles. They are, of course, called cyclones.And, in fact, as I'm writing this post, one of these — Subtropical Depression Alberto — is looking quite impressive in all its swirly glory as it spins over Alabama.But until I spotted the satellite image above