我们生存在其中的宇宙,究竟是怎样产生的?它有着什么样的结构?它在空间上是有限的还是无限的?在时间上是无始无终地存在着还是有着一定的起始点和年龄?对于这些问题.自古以来就有着不同的说法和见解,直到今天仍然存在着不同的学派和争论.由于人们对广阔的宇宙,对众多的星系特别是对遥远的星系所掌握的观测资料还太少,因此还不能说已有令人满意的答案. What exactly is the universe in which we live in? What kind of structure does it have? Is it finite or infinite in space? There is no end in time or there is a certain starting point and age There have been different opinions and opinions on these issues since ancient times, and different schools and controversies still exist till today.There is still too much observation about the vast universe, the vast numbers of galaxies, especially the faraway galaxies Less, so we can not say that we have a satisfactory answer.