Can humans hibernate their way to Mars?

Scientists are trying to recreate the biology that lets animals survive months without food or water, in hopes of making deep-space travel possible Long-term space travel is bad for your health. Very bad. Being in space exposes humans to dangerously high levels of radiation; extended exposure to microgravity can damage a range of organ systems, including muscles, bones and eyes. Living for months or years in tight quarters can have severe psychological effects. The key to solving these proble...

By David Kohn