美国宇航局(NASA)价值4.85亿美元的“火星大气与挥发物演化”(MAVEN)号飞船,在当地时间2013年11月18日,从位于佛罗里达州的卡纳维拉尔角起航。如果2014年9月MAVEN成功抵达火星,它将会研究这个星球外大气层的气体如何逃逸到太空,以及在过去的数十亿年里损失率的变化情况。MAVEN抵达火星后,将探索太阳风是如何与火星大气层相互作用并如何将大气削弱的。“MAVEN的工作将为火星如何演化成如今的模样 NASA NASA’s $ 485 million Marseva and Volatile Evolution (MAVEN) spacecraft departed Cape Canaveral, Florida, on November 18, 2013, local time. If MAVEN arrives on Mars successfully in September 2014, it will study how the gases outside the planet’s atmosphere have escaped into space and how the loss rate has changed over the past billions of years. Upon arrival on Mars, MAVEN will explore how the solar wind interacts with the atmosphere of Mars and weakens the atmosphere. ”MAVEN’s work will be how Mars evolved into what it is today