Which of the following is true regarding the expansion of the universe? Mark all that apply.多项选择题

A

We only see the expansion at large scales because gravity goes to 0 outside of galaxies

B

We can watch the trajectory of galaxies to determine where exactly the center of the universe is

C

Galaxies can move away from us at speeds faster than the speed of light due to the expansion of space

D

There is no center of the universe, the expansion looks the same from every location

E

Some galaxies are actually much further away than they appear

F

The Hubble law is no longer valid when galaxies appear to move faster than the speed of light

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