Viewed in the context of Einstein's general theory of relativity, Hubble's law arises because of the uniform expansion of space, which is merely a scaling up of the size of the universe [see top illustration in box on page 65].
Viewed in the context of Einstein's general theory of relativity, Hubble's law arises because of the uniform expansion of space, which is merely a scaling up of the size of the universe [see top illustration in box on page 65].
以爱因斯坦的广义相对论观之，哈伯定律起因于空间的均匀膨胀，纯粹只是宇宙尺寸的膨胀（详见67页图）。