A Greece-based collective of photographers and tinkerers known as the Pentalunex Team has developed the ChronoCon, seen above. The deceptively simple-looking contraption is essentially a monorail version of a dolly track, and using some sort of proprietary motorized mount, the Pentalunex Team is able to capture stunning video combining HDR with time-lapse and motion.
Check it out in the video below. The part starting at 1:55 is nuts—to see human activity taking place while the stars move fluidly in the background really gives you a sense of our planet revolving through space in a way you've probably never perceived before.
Regarding the ChronoCon, the Pentalunex Team's website says "More information will be soon available." We're not sure if that means they're going to be selling them or open-sourcing them, but we'll keep an eye out either way.