在美国“勇气”号登临火星之时,记者专门采访了北京航空航天大学宇航学院航天飞行器系教授、博士生导师肖业伦——在火星探测方面,美国具有明显的优势火星是地球的近邻,是外行星里离地球最近的一个(以太阳为中心,比地球更靠 When the United States “Courage” on Mars, the reporter interviewed Xiaoting Lun, professor and doctoral supervisor of the spacecraft department of Beijing University of Aeronautics and Astronautics. The United States has a clear advantage in the exploration of Mars. Mars is the nearest neighbor of the earth and is outside The nearest planet in the planet (centered on the sun and on the earth