While it may seem like something from science fiction, NASA is actually trying to develop Machines that will allow a human being to enter “deep” sleep cycles and maintain asleep while they travel to Mars for Lunar exploration and maybe even terraformation! Why is it so important? Well mars is about 180 days worth of travel, loading a crew, food, water, waste material, and fuel for all this time traveling is too costly and too dangerous for the future of space exploration. The way it works is by lowering a humans body temperature from the inside out to about 50-70% metabolic rate. Once there the subject is hooked up with nutrients fed by a drip system which will keep them alive and maintained until their destination. How cool is science!