Thought good old Commander Hadfield already taught you everything there is to know about space livin'? Shame on you—there's always more to learn. Like about how your skin molts and floats off your body in giant flakes and calluses, for instance.

As Mike Massimino and Don Pettit tell us in this episode of ISS Science Garage, about two and a half months into your stint in the great beyond, the bottoms of your feet have spent a fairly decent amount of time without experiencing any pressure. And without gravity to put those calluses you worked so hard for to good use, they essentially just fall off any time you remove a sock and float away as clouds of giant, dead skin flakes. Tasty. [Universe Today via Digg]