Gravity pulls galaxies closer together; dark energy pushes them apart.
Whether the universe is expanding or contracting depends on which force dominates, gravity or dark energy.
Scientifically it is understood that inside galaxies baryonic and dark matters overcome dark energy so gravity wins and keeps galaxies together but when it comes to intergalactic space, it is said that dark energy overcomes baryonic and dark matters and wins the fight, so galaxies are moving away.
Besides there is zero gravity spheres around each gravitationally bound objects, either in galactic form or any forms of clusters of galaxies.
It is understood that the gravitating mass of dark energy is <0.
#DarkEnergy #antigravity #baryonicmatter #darkmatter #gravity
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