A spectral analysis also shows that the supernovae used to measure the universe's expansion rate today look remarkably similar to those that exploded nine billion years ago and are just now seen by Hubble.
A spectral analysis also shows that the supernovae used to measure the universe's expansion rate today look remarkably similar to those that exploded nine billion years ago and are just now seen by Hubble.
光谱分析同样显示现今用来测量宇宙膨胀率的超新星与那些90亿年前爆炸的也就是现在被哈勃看到的超新星非常的相似。