^* Here’s another possible reason NASA avoids cadaver research: astronauts. “I floated into a sleep restraint and extended my arms through the armholes then ducked my head into the bag,” wrote Mullane. “Pepe and Dave taped the skull on top…They silently floated the bag to the flight deck and maneuvered me behind John Casper, who was engaged at an instrument panel. When he turned to find the creature in his face with arms waving, it scared the bejesus out of him. Later, we clamped [it] on the toilet.” If you read just one astronaut memoir in your life, make it Mullane’s.