There are no hospitals in space. The closest E.R. is back on Earth, and astronauts can't exactly jump in a cab to get there. So what happens if the sun burps out a massive blast of radiation while an astronaut is space-amblin' by? The NASA Biocapsule—made of carbon nanotubes—will be able to "diagnose" and instantly treat an astronaut without him or her even knowing there's something amiss. It would be like having your own personal Dr. McCoy—implanted under your skin. It represents one of the most significant breakthroughs in the history of medicine, and yes, it'll work on Earth, too....