*节 【疯狂科学家】一罐可乐放入液氮中的实验

第二节 2个很酷的科学实验

*节 为什么我们要往外太空送望远镜

Laser propulsion: NASA's laser-powered spacecraft will fly to Mars in 72 hours

Total solar eclipse will sweep across Indonesia and Southeast Asia

Japan space agency's $265 million satellite breaks into pieces

Sun may produce devastating superflares that can wipe out life on Earth

Stephen Hawking and billionaire’s plan for laser-propelled nanocraft fleet

第二节 火星探索

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