Read this phrase from Hubblesite and was confused, “In 1929, Edwin Hubble provided the first observational evidence for the universe having a finite age. Using the largest telescope of the time, he discovered that the more distant a galaxy is from us, the faster it appears to be receding into space. This means that the universe is expanding uniformly in all directions.”
If the speed of expansion is uniform, shouldn’t distance not even be a variable?
In: 121
If you have galaxies laid out like this
A-B-C-D-E
and after a billion years they look like this
A–B–C–D–E
the rate of expansion was uniform…each “-” became “–“. B moved one “-” from A. But C moved *two* “–“s away from A! And E moved *four* away! Because there’s more starting space between them, there is more space to expand.
Latest Answers