你有一个关于火星旅行的故事，你觉得它是独一无二的，并且一定能让打动出版商。
Say you have a story idea about Mars, an idea so original, you're sure it will be a hit with publishers.
作为这趟可能去到火星旅行的部分准备，六个宇航员最近在莫斯科的一个无窗密封舱里呆了500天。
As part of the preparations for a possible trip to the Red Planet six astronauts recently completed a 500-day stay in a windowless capsule in Moscow.
现在新的研究已找到了一个可行的原理来解释在无液态水的条件下火星的锈红色是如何形成的。
Now new research has found a possible mechanism to explain Mars' rusty color without liquid water.
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