如果现在火星上有生命，他应该在机器人平台探测不到的地表深处存在。
If extant life exists on Mars today, it is likely to be in deep subsurface environments that will be inaccessible to robotic platforms.
“先驱者号”太空探测器上装有紫外线仪器，能够对在地球上探测不到的光进行测量。
The Pioneer probes have on board ultra -violet instruments which are measuring light that we can't measure on the earth.
再探测一下比较暗淡的尾巴，想不到，这下却让科学家们大吃一惊。
The detection of the second, fainter tail, however, was asurprise to the scientists.
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