<p>Since the theory is, that effect of gravity travels at the speed of light, could the forces that hold galaxies together already have changed as we are 20k light years are so away from the centre ? And this could be true for all galaxies ?</p>

CC BY-SA 4.0
2022-05-02T17:17:25.690Z
Also the Sun could have disappeared in a puff of smoke 2 minutes ago and we wouldn't know yet.
planetmaker
CC BY-SA 4.0
2022-05-03T23:58:14.673Z
But we would in 2 minutes but the question is whether the galaxy and other objects are still place
Solo Man
CC BY-SA 4.0
2022-05-04T02:43:10.287Z
Where is the principal difference?
planetmaker
<gravity>
Could the forces that hold the galaxies together already have changed?
Solo Man
# Could the forces that hold the galaxies together already have changed?

(Asked by: username_0 on 2022-05-02)

Since the theory is, that effect of gravity travels at the speed of light, could the forces that hold galaxies together already have changed as we are 20k light years are so away from the centre ? And this could be true for all galaxies ?

**Tags:** gravity
> **Comments:**
> **username_1**: Also the Sun could have disappeared in a puff of smoke 2 minutes ago and we wouldn't know yet.  
> **username_0**: But we would in 2 minutes but the question is whether the galaxy and other objects are still place  
> **username_1**: Where is the principal difference?  

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## 0 answers

