20年代，我们对宇宙所有的认识都被颠覆了。20世纪初科学界的传统观点认为宇宙是静态的、永恒的，但1929年所有的这些认识都被改变了。星系们原来不是原地不动而是以惊人的速度在远离地球。这就是第一个真实的大爆炸的证据。



听写方式: 全文听写。
Hint:
Big Bang
Mount Wilson
Los Angeles
Edwin Hubble

订阅后不但能收到及时通知，还能看到列表哦。
Since the late 1920s, everything we know about how our universe works has been turned upside down. It's important to realize how much our picture of the universe has changed in the last century. At the beginning of the 20th century, the conventional wisdom in science was that the universe was static and eternal. In 1929, that all changed. At the Mount Wilson observatory above Los Angeles, astronomer Edwin Hubble discovered galaxies aren't stuck in one place. Not only are they moving, but they're flying away from Earth at incredible speeds. This was the first real evidence of the Big Bang.