Well, this was done in order to achieve the maximum conservation of our life support capabilities, basically food and air. Now the three hybernating crew members represent the survey team. And their efforts won't be utilized until we're approaching Jupiter.

Dr. Poole, what's it like while you're in hibernation?

Well, it's exactly like being asleep. You have absolutely no sense of time. The only difference is that you don't dream.

As I understand it, you only breathe once a minute. Is this true?

Well, that's right. The heart beats three times a minute. Body temperature's usually down to about, um, three degrees centigrade.