本帖最后由 sonic5188 于 2010-11-2 15:13 编辑
http://www.popsci.com/category/tags/space
This mosaic of images shows the soil in front of NASA's Mars Exploration Rover Spirit after a series of short backward drives during attempts to extricate the rover from a sand trap. The brightness and color of the freshly disturbed soil seen in the center area of the mosaic indicates the this formerly hidden material is sulfate-rich. This pattern suggests water has moved downward through the soil, dissolving and carrying the ferric sulfates. NASA/JPL-Caltech/Cornell University
这个拼接照片显示了美国宇航局“勇气号”火星车前方的一片土壤，此前勇气号通过一系列短距离倒车试图摆脱一个沙坑。
在拼接照片中央区域，被翻动的新鲜土壤的亮度和颜色表明这些以前被掩埋的物质含有丰富的硫酸盐。这一现象表明水透过土壤向下渗透，溶解和携带硫酸铁。(美国航天局/喷气推进实验室，加州理工学院/康乃尔大学)
The brave little rover has been stuck in the sand for a year and a half, spinning her wheels and wiggling her robot arm futilely. As she's kicked up sand, though, she has uncovered deeper layers of Martian soil, and analysis of the difference between the surface and what lies beneath shows evidence of water.
这个勇敢的火星车陷在沙里一年半，徒劳地转动她的轮子、扭动她的机械手臂。由于踢走了泥沙，她发现火星深层土壤，对表层和下层土壤的差异分析显示水存在的证据。
Spirit is not exactly parked in a puddle yet, but the pattern of the ferric sulfates in the red soil look like it was caused by seeping of liquid -- recently, perhaps seasonally, perhaps continually.
虽然勇气号不一定是停在一个水坑里，但红壤里含有硫酸铁的现象看起来就像是最近液体渗透造成的。也许是季节性的，也许是不间断的。
If Spirit survives the coming Martian winter, during which the rover will be placed in a hibernation state, she will continue to do valuable science when she wakes up.
在即将到来的火星冬季里勇气号探测器将处于休眠状态。如果她能撑过这个冬季，当她醒来后，会继续做有价值的科考。 |
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不错，很明显的水迹。