Three weeks ago, NASA presented the first direct evidence that rocks the rovers found on Mars had been shaped by water.

三周前，NASA出示了第一份直接证据，证明机遇号在火星上发现的岩石形成于水中。

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The scientists say their best explanation for this is the flow of salty water, possibly underground, although they say the findings don't provide direct evidence of water on Mars.

然而他们表示，该发现并不能提供火星上有水存在的直接证据。

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Things improve after March 10 when Mars will go direct.

改进后的事情时，3月10日火星将直接。

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At the moment a shift in priorities that would lead to a direct Mars mission seems unlikely.

ECONOMIST: Human spaceflight: Over the moon? | The

Beside its direct scientific role, Mars Odyssey is also an important link in America's Mars-exploration programme.

ECONOMIST: Mars Odyssey