Last year, Luca Parmitano nearly drowned in his own fluids during a spacewalk. Now, NASA has teamed with the Houston Methodist Hospital's research institute to make sure that such a thing never happens again
When you shatter your kneecap, the surgeon may use an implanted scaffold to coax your bones to knit back together properly. But what happens to the scaffold once you're healed? With this new system, the scaffold just melts away.