Dark energy may have flipped from negative to positive 9.5 billion years ago

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1. ScienceDaily13 Nov, 14:38

   Dark energy may have flipped from negative to positive 9.5 billion years ago

   A mysterious force driving the expansion of the Universe may have undergone a dramatic reversal billions of years ago. Scientists exploring an overlooked branch of an alternative gravity theory discovered that dark energy could have switched from negative to positive roughly 9.5 billion years ago…