那时，行星和一些主要的卫星承受着由重力造成的挤压加热以及巨大冲击造成的击打，这清除了它们许多的历史痕迹。
The planets and the major moons have all been squeezed and heated by gravity and pummeled by giant impacts, erasing much of their history.
飞船的读数确实显示了卫星的痕迹，但它们也显示了几个就在卫星直径边上的意外的粒子观测下降。
The craft's readings did show the moon's wake, but they also revealed several unexpected dips in particle detections just outside the moon's diameter.
美国宇航局的侦察卫星最新拍到的月球表面的照片已经非常清晰的显示了宇航员的足印，登月车以及航天飞船烧焦的痕迹。
Nasa's lunar Reconnaisance Orbiter (LRO) has taken new photographs of the surface that clearly show astronaut footprints, the lunar rover and spacecraft scorch marks.
而今年对月亮观测卫星拍到的图像的研究允许科学家们描绘出太阳系内小行星爆炸的历史痕迹。
And study of the pictures produced by this year's Lunar Reconnaissance Orbiter will allow scientists to build a history of asteroid bombardment of the inner solar system.
而今年对月亮观测卫星拍到的图像的研究允许科学家们描绘出太阳系内小行星爆炸的历史痕迹。
And study of the pictures produced by this year's Lunar Reconnaissance Orbiter will allow scientists to build a history of asteroid bombardment of the inner solar system.
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