一周前,Big Think网站在Dangerous Idea栏目中刊登了物理学家斯蒂芬@霍金最新的危言耸听放弃地球,否则人类就会灭亡。 http://bigthink.com/ideas/21570 霍金说,It will be difficult enough to avoid disaster on planet Earth in the next hundred years, the al ...
SPACE TRAVEL First Stop Moon. Next Stop, Mars Lunar base. by Staff Writers Vienna, Austria (SPX) Oct 19, 2007 火星这颗遥远的红色行星已经抓住了无数代人的想象,它使作家得到灵感,撰写关于月球探险的小说。它刺激科学家寻求 ...