In 2004, two robot explorers, or 'rovers', called Spirit and Opportunity were sent to look for signs of water.

2004年，两个名为“勇气号”和“机遇号”的探测器或“漫游者”被派去寻找水的迹象。

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Further inspection in the two cargo holds showed that the Spaces were dry with no signs of water ingress or wetting of cargo.

对两个货舱的进一步检查显示，货舱是干燥的，没有水流入或货物受湿的迹象，货物也没有受潮。

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We search the universe looking for signs of water and when we look back at our planet, we are small and pale, yes, but we're dazzlingly blue.

我们探索宇宙来寻找水的迹象，但当我们回望地球的时候，发现她又小又暗，但是确闪耀着蓝色。

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Mars landers and rovers were designed to look for signs of liquid water that may have flowed on Mars in the distant past.

VOA: special.2010.07.28

Experts say even a two percent drop in the body's water supply can cause signs of dehydration.

VOA: special.2010.07.27

Each mission will look for signs of water, a requirement for life on Earth.

CNN: Mars Express leads interplanetary pack

Scientists hope to find older, more interesting rocks there, and perhaps tell-tale signs of water.

CNN: Mars rovers working overtime

While Earth orbit is vital, keep in mind that visionaries like Elon Musk have in mind a human journey to Mars to look for signs of water and life.

WHITEHOUSE: Space Community Leaders on Historic Berthing of Dragon to the International Space Station | The White House