The empty space in the universe is primarily made up of dark matter and dark energy. Dark matter interacts through gravity but is invisible, while dark energy is responsible for the universe's accelerated expansion. Together, they comprise most of the universe's mass-energy content. ;
The empty space in the universe is primarily made up of dark matter and dark energy. Dark matter accounts for about 27% of the universe, while dark energy comprises approximately 68%. Together, they represent around 95% of the universe's total mass-energy content.
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