From down here on the ground, space looks like a pristine void. But Earth's orbit is actually crowded with a ton of stuff, from human-made satellites to many smaller pieces of debris whirling around at dangerously high speeds, as the film Gravity so memorably dramatized. In fact, there are an estimated 500,000 or so smaller orbital debris (between one and 10 centimeters in diameter) and about 21,000 larger bits (larger than 10 centimeters) spinning around Earth right now, according to NASA's Orbital Debris Program Office.

And now you can see all but the smallest bits moving around us right now thanks to "Stuff In Space," a mesmerizing new website designed by young programmer James Yoder, which tracks the paths of hundreds of thousands of orbital objects in realtime.