How Scientists Plan To Send Hibernating Astronauts to Mars

"A lot of things are falling into place for NASA's inevitable moonshot
to Mars. (Mars-shot?) However, one of the original challenges remains
one of the more elusive ones: How do you get the astronauts to live on
a spaceship for six months without going crazy? You put them to sleep,
that's how."

See:

http://gizmodo.com/how-scientists-pl...o-m-1200941340