转自科研中国 网 |
借助于先进的声波雷达地质学者发现火星表层下存在古老而崎岖的地形 （作者：佚名 文章来源：physorg.com ）
【科研中国SciEI.com整理】Scientists are finding an older, craggier face of Mars buried beneath the surface, thanks to pioneering sounding radar co-sponsored by NASA aboard the European Space Agency's Mars Express spacecraft.
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http://www.SciEI.com/news/science/Chronometer/Index.html
