Astronomers have found that the expansion of the Universe is _________.
A) speeding up
B) slowing down
C) changing randomly
D) constant

Name: Astronomers have found that the expansion of the Universe is _________. A) speeding up B) slowing down C) changing randomly D) constant
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Question

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The expansion of the Universe is speeding up, as evidenced by observations of distant supernovae and the cosmic microwave background, which suggest the presence of dark energy driving this acceleration.

Astronomers Have Found That the Expansion of the Universe Is