[全屏观看] 点击右键- 另存为 可保存这个Flash影片...
[全屏观看] 点击右键- 另存为 可保存这个Flash影片...
Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se...
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t...