我们谈论外星人不知已有多少年的历史,对外星人的研究与探索也一直没有中断过。然而直到今天,我们地球人还没有发现任何一个外星人,到底外星人是否真的存在?如果真的存在,他们在哪里呢?为什么一直不露面呢?外星人在哪里?有这样一个有关外星生命是否存在的最著名的争论——费米疑问。这个疑问是根据印度裔物理学家、诺贝尔奖获得者恩里科的名字命名的。费米在本世纪 We talk about the history of alien I do not know how many years have been, the alien research and exploration has not been interrupted. However, until today, our planet has not yet found any alien, in the end if the aliens really exist? If it exists, where are they? Why did not show up? Where are the aliens? There is such a The most famous controversy over the existence of extraterrestrial life is Fermi’s question. The question is based on the Indian physicist, Nobel laureate Enrico named. Fermi in this century