Question

what is dark matter and dark energy??
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Answer 1

Answer:

In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. ... Meanwhile, dark energy is a repulsive force — a sort of anti-gravity — that drives the universe's ever-accelerating expansion

Explanation:

Only five percent of the universe is visible. The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent). ..

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Answer 2

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