The current state of this technology is really promising. They use a technique called therapeutic hypothermia, which lowers the temperature of a person by a few degrees...With the lowered temperature, a human’s metabolism decreases and they fall unconscious into a torpor. ... A few years ago, SpaceWorks Enterprises delivered a report to NASA on how they could use this therapeutic hypothermia for long duration spaceflight within the Solar System. Currently, a trip to Mars takes about 6-9 months. And during that time, the human passengers are going to be using up precious air, water and food. But in this torpor...