- #1
RMV
- 5
- 1
I came to understand that the space between galaxies are expanding and not that they are speeding from each other and as space expands the gravitationally bound systems remain in their own relative position as the effect of gravity is more compared to the expansion of space.
But now consider two galaxies close enough that they are expected to merge over a appreciable period of time.
Even though gravity wins over expansion , I can't resist to think that there would be a certain amount of energy or time that is used up to win over expansion. If so can't we use this as one method to work out the expansion of space?
(Sorry, I am a little new here!)
But now consider two galaxies close enough that they are expected to merge over a appreciable period of time.
Even though gravity wins over expansion , I can't resist to think that there would be a certain amount of energy or time that is used up to win over expansion. If so can't we use this as one method to work out the expansion of space?
(Sorry, I am a little new here!)