Astronomers have proposed the existence of an unexplained force that is causing the expansion of the universe to accelerate. Wha t do they call this force?
2 answers:
The forces which 'cause expansion are " <span>momentum left over from the Big Bang, and the force of dark energy" That is what we currently believe.
Dark energy is the term to refer to the force that is causing an expansion of the universe to accelerate. It is estimated that the universe is 68.3 percent <span>dark energy, 26.8 percent dark matter, and 4.9 percent ordinary matter.</span>
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