Because planetary researchers are enlisting everyday citizens in scientific exploration of the surface of the moon.
因为行星研究人员正在征募普通公民进行月表科学探险。And with virtually no atmosphere there is no wind or rain, so very little surface erosion occurs.
而且,月球上其实没有大气,也就没有风雨,因此几乎不会发生什么月表的风化侵蚀现象。NASA crashed the rocket and a satellite into the moon's surface on Friday morning in a $79 million mission.
在这项耗资七千九百万美元的行动中,航空航天局于周五早晨将火箭和卫星撞向月表。At the Web site moonzoo. org, you can check out new high-resolution images taken by NASA's Lunar Reconnaisance Orbiter Camera.
你可以在moonzoo.org网站查看由美国国家航空航天管理局的月表勘查人造卫星相机拍摄的高分辨率图像。The radar, called theMini-SAR, sends pulses of left-polarized radio waves out to measure the surfaceroughness of the moon.
那个叫做Mini-SAR的雷达,通过向月表发射左旋极化电磁脉冲来测定月球的表面粗糙度。To get the content and distribution of elements.
获得月表主要元素的含量和分布。And remember the podcast from April 27th, about a Soviet reflector found on the moon's surface after forty years?
还记得4月27号的广播吗,就是关于苏联反射器40年后重归月表的那篇?And we need to find out, because much more than the crust, the mantle contains information about the planet's or moon's total composition.
我们急需了解清楚,因为除了月表以外,月幔包含了行星月球的很多信息。Analysis of the effects of different lunar landform on lunar landing vehicle's thermal control systems
月表地形环境对着陆器热控系统的影响分析