Physicists have known that dark energy could become negative and the universe could collapse sometime in the distant future, perhaps a trillion years. But now we see that we might be not in the beginning, but in the middle of the life cycle of our universe.

Andrei Linde

Energy Future Universe

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The universe may be doomed to collapse and disappear. Everything we see now, and at a much larger distance that we cannot see, will collapse into a point smaller than a proton.

— Andrei Linde

The standard vision at the moment is that the universe is speeding up, so we were surprised to find that a collapse could happen with such a short amount of time.

— Andrei Linde

Definitely, this is a step in the wrong direction. It runs counter to the [International Atomic Energy Agency] board of governors resolutions and a statement by the U.N. Security Council president.

— Andrei Krivtsov

DirectionEnergy

Because dark energy makes up about 70 percent of the content
of the universe, it dominates over the matter content. That means dark
energy will govern expansion and, ultimately, determine the fate of the
universe.

— Eric Linder

Because dark energy makes up about 70 percent of the content of the universe, it dominates over the matter content. That means dark energy will govern expansion and, ultimately, determine the fate of the universe.

— Eric Linder