在浩瀚无垠的宇宙中，地球人类会是"唯一的独苗"吗？UFO是由外星生命驾驭的遨游星际的交通工具吗？UFO和外星人的联系，是流行文化和大众心理长期互相影响、互相促进的结果，还是确有其事？
对此，被称为"宇宙之王"的英国物理学家霍全认为，宇宙包含着1000亿个星系，每个星系又拥有数亿颗恒星。在这么广阔的区域里，地球当然不可能是生命进化的唯一场所。外星生命可能存在于宇宙的很多地点，甚至漂流在星际空间中。
然而，霍金在对外星生命做出乐观推测的同时，却又悲观地认为：假如外星人有朝一日降临地球，他们恐怕会为了掠夺资源而大举入侵，然后无情地扬长而去。和外星生命的接触，果真会将地球变成现实世界的《阿凡达》吗？阅罢《天外来客：外星人与UFO大全集（超值金版）》，你将有一个属于自己的idea！
此刻，你还等什么？赶紧打开《天外来客：外星人与UFO大全集（超值金版）》，一睹为快吧！
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