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1·His main scientific interest is Comparative Planetary Geology, and in particular Tectonics, Impact Cratering and Astrobiology.

他的科学专长在于比较行星地质学，特别是有关板块运动、陨石碰撞和天文生物学。

2·Comparative planetary geology is a frontier discipline on exploring nature and evolution of human being, and a key to reaching the three major goals of Solar system exploration.

比较行星地质学是人类认识自然和人类本身形成与演化的前缘学科，是实现太阳系探测三大科学目标的主要手段。

3·The new evidence likely will change the way planetary scientists view Mars. Pourmand, who is an assistant professor in marine geology and geophysics, said

新证据可能将会改变行星科学家们看待火星的态度。