火星沙尘暴
Mars' Spring StormsEarly spring typically brings dust storms to northern polar regions of Mars. As the north polar cap begins to thaw, the temperature difference between the cold frost region and recently thawed surface results in swirling winds. The choppy dust clouds of at least three dust storms are visible in this mosaic of images taken by the Mars Global Surveyor spacecraft in 2002. 天文望远镜器材评测和交流论坛6 E- ? K& E; t' k, q
火星沙尘暴是每年春季火星极区形成的特有自然现象，这张由火星全球探勘者号于2002年拍摄的照片可以清晰的看到有3个沙尘暴天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测，望远镜测评,双筒望远镜，天顶，目镜，望远镜配件，赤道仪( N5 y# V" K% Q0 n1 y% ~: | y
天文望远镜器材评测和交流论坛# y$ g% C" n1 ~
[ 本帖最后由 siqingtan 于 2008-7-2 19:29 编辑 ]
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