And as they are brutally eliminated, one by one, their true personalities emerge, sordid secrets are unearthed and old friendships are tested to the limit in a ruthless battle for survival.

当他们却惨遭淘汰，一个接一个，他们的真实个性出现，肮脏秘密出土的老友谊在无情的战斗中生存测试到了极限。

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In uncovering the secrets of life's survival on the Earth, astrobiology has some found remarkably prosaic applications.

CNN: How the search for aliens can help sustain life on Earth