2005年7月3日,人类第一次深度撞击彗星,取得预期效 果,获得成功。这是人类挑战宇宙、剖析彗星又一次开拓性 的成果。 什么是彗星呢?彗星在我国民间叫“扫帚星”。不知道 是什么原因,国内国外都认为它的出现,预示“天下不太 平”。当然这是不科学的,其中的原因,也许是它的外貌有 July 3, 2005, the first human impact on the depth of comet, achieved the desired results, to be successful. This is the human challenge to the universe, dissecting the pioneering achievements of comet. What is a comet? Comet in our folk called “broom star.” Do not know what is the reason, both at home and abroad that its appearance, indicating that “the world is not peaceful.” Of course, this is unscientific, one of the reasons, perhaps it looks