Dark energy and Newtonian gravity:

Dark energy is not very familiar to us.

But we can also observe the effect of dark energy on the Newtonian gravity of galaxies, especially in very large clusters of galaxies like the Coma Cluster.

Dark energy exists at least in intergalactic space and has effective mass <0.

Since dark energy dominates intergalactic space, Newtonian gravity has no effect where dark energy dominates.

Dark energy has no effect within the gravitational effects of galaxies.

The effect of dark energy is stronger than the effect of gravity, so it pushes away gravitationally bound galaxies or their clusters, mega or superclusters.

Dark energy causes antigravity, and engages in a tug-of-war with gravity, with dark energy always winning.

So antigravity due to dark energy pushes galaxies apart, expanding the distance between galaxies.

Affected galaxies have zero-gravity spheres around them, only outside of which dark energy dominates.

About 68% of the universe is believed to be dark energy.

Acknowledgement: The article is written from my memory of a forgotten reaserh work involving scientists of different countries.

#darkenergy #graviyy #newtonian