第206章 南半球着陆(1 / 2)

五架中型核动力直升飞机在火星稀薄的大气中穿行,孙勇胜这些天实在太累了,穿着宇航服在真皮座位上打瞌睡。</p>

直升飞机是无人驾驶飞机,只要输入需要去的地方的方位坐标,它就会根据GPS导航系统寻找飞行路线,带乘客到达他们的目的地。</p>

忽然,直升飞机遇到气流,就猛烈地颠簸了一下,就像在地球上乘坐民航客机一样的感觉。孙勇胜和其他4个员工都睡着了,这猛烈的颠簸把他们从沉睡中拉了起来。</p>

孙勇胜打了一个哈欠,问驾驶室里的员工:“peter,我们现在到哪里了?到南半球了吗?”</p>

Peter甩了甩头,让自己清醒过来,便看了看仪表盘里的飞机定位说道:“孙总,飞机现在已经飞到了火星赤道的上空了。”</p>

孙勇胜点点头,透过机舱的透明舷窗望下去,没有云层的阻挡,可以清楚地看到红色星球下面的地貌,类似于过去地球上的雅丹地貌,红彤彤的赤色山体,荒漠和峡谷,高低错落地在赤道发育。</p>

从平坦的北半球飞到坑坑洼洼的南半球,孙勇胜一行人还真有些不适应。</p>

火星南北半球可谓“风格迥异”。南半球是充满陨石坑和沟壑的高地,北半球则是低地和平原。火星北半球的平均高度约比南半球“矮”约3000米,外壳也相对较薄。地貌上,南北半球分界线呈现为清晰可见的一条巨大曲线。</p>

火星上直径宽于30公里的深坑数超过3000个,其中约90%分布在南半球。北半球则存在巨型陨石坑伯勒里斯盆地。</p>

火星上尼罗瑟提斯桌山群位于中部地带,是北部低地和南部高地之间的过渡区域。</p>

科学家把尼罗瑟提斯桌山群称为锐蚀地形(frettedterrain):数不清的沟渠、山谷把地表分割成大小各异的无数个块状区域。从天空俯视,这里看起来就像迷宫一样错综复杂。</p>

分析显示,水、风和冰对这个区域的侵蚀,加上火星上的自然地理变化综合作用造就了现在的地理样貌。</p>

这些因素包括,久远历史中逐渐形成的山谷刻印出不同的区域;以前撞击形成的陨石坑,逐渐被腐蚀变形,边缘地带逐渐被磨平,撞击坑的特征逐渐在改变。</p>

五架核能直升飞机越过了尼罗瑟提斯桌山群,便来到了高而凸起的南半球,这里的平均海拔比北半球高了不少。</p>

他们要登陆的地方是由技术员根据卫星定位分析的一个不知名的陨石坑,这个峡谷平均海拔是-120米。在众多巨大而且深邃的陨石坑中,这只是一个小而浅的陨石坑。他们深信,就在这个不知名的南半球陨石坑的地底就含有丰富的地下水。</p>

直升飞机慢慢降低了前进的速度,也慢慢地向火星地表下降,还有10分钟,就可以在这个陨石坑的表面着陆。</p>

直升飞机的液晶显示屏显示:室外地表温度-25摄氏度、风力2级、南风。这样的温度和风力对于人类来说还算在一个比较友好的范围内。</p>

现在是下午3点30分,直升飞机稳稳地降落在一片荒芜和没有一个人影的南半球陨石坑。</p>

外面静悄悄的,除了风沙的声音和一片赤红色的荒漠,就什么声音都没有了,感觉是一片死寂。</p>

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