Going underground

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Going underground

机译：进入地下

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A new generation of planetary radar aims to look deeper than ever into some of the Solar System's most enduring mysteries. Tony Reichhardt gets ready for a trip to the interior. Photographs of the martian surface are undeniably beautiful, but uncovering the truth behind the sinuous river beds and suggestive gullies is not easy. Spacecraft and rover missions have turned up plenty of evidence that water once flowed on Mars, but today the planets surface is bone dry. There is water ice at the poles andhints of a frozen sea near the equator — but any large reservoirs of water are likely to be kilometres down where conditions are warmer. So the hunt for liquid water, which might provide a habitat for martian life, has gone underground.

机译：新一代的行星雷达旨在比以往任何时候都更深入地了解太阳系最持久的谜团。托尼·赖哈特（Tony Reichhardt）准备前往内部旅行。火星表面的照片无可否认是美丽的，但要揭露曲折的河床和暗示的沟壑背后的真相并不容易。航天器和漫游者的飞行任务已经获得了大量证据，证明水曾经流过火星，但如今行星表面已经干bone了。在赤道附近的冰冻海域的两极和极处都有水冰-但是，在天气变暖的地方，任何大型水库都可能位于几公里之外。因此，寻找可能为火星生命提供栖息地的液态水的工作已经进入地下。

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《Nature》 |2005年第7040期|p.266-267|共2页
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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Going underground

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