Don Pettit, one of my favorite scientist astronauts, took the picture. It's (c)NASA, they usually allow sharing of their photos for (at least) noncommercial use with attribution.
It is, of course, a long exposure to get those star trails, the little blue flashes below are almost certainly lightning, which is flashing in and above the clouds constantly in at least a few places at any given time all over the earth.
