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[S]ix men emerged from a metal hatch after 105 days of isolation in a mock spacecraft, still smiling after testing the stresses that space travelers may face on the journey to Mars. They had no television or Internet and their only link to the outside world was communications with the experiment's controllers — who also monitored them via TV cameras — and an internal e-mail system. Communications with the outside world had 20-minute delays to imitate a real space flight.
System going down in 5 minutes.