What Astronauts Know About Fear That Most Leaders Don't Read online → “ "We become brave by doing brave actions." — Aristotle In April 2001, Chris Hadfield was holding onto the side of the International Space Station with one hand, 250 miles above Earth, when he went blind. He was on a spacewalk, installing a robotic arm, when a drop of cleaning solution drifted off his visor and into his left eye. It turns out that in zero gravity, tears don't fall. The contamination grew into a ball, rolled...