24. If it is expanding, when will it stop? (A K2S Question)

From The Space Library

It was recently discovered that not only is the Universe expanding, the expansion rate is accelerating—it is expanding faster and faster. Scientists do not understand why, so they have named the source of this acceleration "dark energy."

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Answer provided by Jim Zebrowski

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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