Visible matter accounts for only five percent of the total mass in the universe
Ordinary matter composed of atoms represents only five percent of the universe, while the remainder consists of invisible dark matter and dark energy that defy direct detection.
Dark matter accounts for approximately 27 percent of the universe's mass-energy, a presence inferred from the rotation curves of galaxies first observed by Fritz Zwicky in 1933. Without this invisible scaffolding, galaxies would fly apart, as visible stars do not provide enough gravity to hold them together. Despite intensive searches at the Large Hadron Collider and the Xenon1T experiment, the specific particles involved remain a mystery.
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