If the universe is expanding more and more quickly because of dark energy, it means that everything is getting farther away from us a little faster each day. As the expansion picks up speed, things that are far apart will eventually be expanding away from one another faster than the speed of light. This means that light from stars will stop being able to reach us. Already, there are fewer stars visible to us in our night sky today than there were yesterday. If you follow this expansion to its natural conclusion, in billions of years the night sky will have only a few visible stars. And, even
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