Designer and data visualizer John Nelson thought it would be fun to stitch together a bunch of NASA’s “Visible Earth” images through the seasons. Once he did, he realized: it’s breathing. “All of a sudden I see a thing with a heartbeat,” he says, “I didn’t expect to be so mesmerized. . . I can’t look away.” (give it a bit of time to load all the frames, then it’ll run smoothly)
See John’s blog here, and a couple of good articles about this from NPR and Nat’l Geo. All these links also include a view that shows the subtler dance of green across the southern hemisphere, and John’s page offers views in much larger sizes as well!