While its motion sensing cousin gets all of the hype, the accuracy of the PlayStation Move can provide some really awesome data that previously required specifically designed instruments.
Back in the day, and I mean way back, we humans were not so sure what happened up in the sky. Sure, it looked like the sun moved around us, as did the moon, and the stars all rotated in the sky in a pattern that suggested that the Earth was at the center of it all. But then a guy named Nicolaus Copernicus posited that the Earth in fact revolved around the sun and the day and night cycle was caused by Earth's rotation on an axis. His theories were revolutionary and controversial, and the championing of the heliocentric view of our solar system landed Galileo in house arrest by none other than the Catholic Pope in Rome.