99% Invisible Extra! NASA is figuring out how to take the next great leap into space. The difficulty is, if we leap to Mars, we might not make it back. This is a story I produced last year (Summer 2009) for a public radio tech show pilot that didn’t get picked up, and since I am taking a week off of the radio program, and this story presents a cool design challenge (and solution!), I thought it would make a nice, extra long 99% Invisible bonus story. I hope you dig it.