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Juliette [100K]
2 years ago
15

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?
Geography
2 answers:
geniusboy [140]2 years ago
8 0
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.

Hope this helps!</span>
alina1380 [7]2 years ago
5 0
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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