Question

What does the red-shift of galaxies indicate?

A.
The galaxies are not moving.

B.
The galaxies are shrinking.

C.
The galaxies are moving toward each other.

D.
The galaxies are moving away from each other.

I think A or B

@youngstudier

Answer 1

Nope (I actually didn't have this question but I understood this stuff quite well) not either of them. A and B are wrong.

Answer 2

D

Answer 3

Yeppers

Answer 4

^u^

Answer 5

one second I'll post something that'll help u understand better

Answer 6

kk

Answer 7

http://static.k12.com/calms_media/media/284500_285000/284627/2/c2ebe392981629cf92bfe263f22cd1df197ceec4/MS2_ERT_10_01_108_ILL_light_wavelength.jpg

Answer 8

This help?