Big rip - order of distintegration?

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SUMMARY

The discussion centers on the "big rip" scenario in cosmology, which posits that galaxies would disintegrate first due to their relatively weak gravitational binding compared to more massive objects. As dark energy increases, it overcomes gravitational forces, leading to the eventual dissolution of galaxies, stars, and ultimately atomic nuclei. This scenario is now considered less plausible due to advancements in understanding cosmological expansion, yet it highlights the varying strengths of gravitational and nuclear forces in the universe.

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In the big rip scenario, many of the documentaries and explanations have always said that galaxies would dissipate first. Why is that? wouldn't everything go at once? or is it because galaxies require the most amount of gravity to keep it together
 
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The big rip is not generally considered a plausible scenario any more,since we now have a better understanding of cosmological expansion.
However I think the general idea is that gravity would at first hold more massive objects together,
While galaxies are big they are not very dense, the gravity holding the individual stars of as galaxy together is tenuous.
By contrast the gravity holding the atoms together in a star is stronger, but very local to the star.
The final outcome in that scenario is that dark energy having defeated gravity eventually goes on to defeat even the strong nuclear force holding atomic nuclei together.
 

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