- #1
S.Vasojevic
- 173
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I am starting this thread because this is something Sylas and me were discussing off topic on another thread, but I would welcome more clarification on this.
If I understand this correctly galaxies are not moving apart because there is a force acting on them which overcomes gravity, and accelerate their mass, but simply because more space is being "stuffed" in between them?
If above is correct wouldn't that imply that between receding galaxies there is constant gain in gravitational potential energy which comes not from expense of some other form of energy, but from expanding space. Wouldn't that be a violation of first law of thermodynamics?
If I understand this correctly galaxies are not moving apart because there is a force acting on them which overcomes gravity, and accelerate their mass, but simply because more space is being "stuffed" in between them?
If above is correct wouldn't that imply that between receding galaxies there is constant gain in gravitational potential energy which comes not from expense of some other form of energy, but from expanding space. Wouldn't that be a violation of first law of thermodynamics?