“You put them through missions, and you see who is tough and cheerful and team-spirited,” Zubrin says. “If you lose your sense of humor on the way to Mars, you’re finished.”

“你让他们完成任务，然后观察谁最坚强、快乐并富有团队精神的，”祖布林说到，“如果你在去火星的路上丢失了幽默感，那么你完了。”

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Dr. Zubrin is the founder and President of the Mars Society, as well as a member of the organization's Board of Directors.

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"We're better prepared for a journey to Mars now than we were when we sent men to the moon in the 1960s, " Zubrin told CNN.

CNN: Life on Mars?

Robert Zubrin Dr. Robert Zubrin, Senior Fellow.

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