While the concept of time travel has long captured public imagination, modern physics actually approaches time in a much more subtle manner. Instead of moving people or objects through history, ...

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A new theory suggests our universe and a time-reversed twin could emerge together. This quantum approach avoids singularities and offers an explanation for dark energy. Traditional cosmological models ...

A method that can reverse the flow of time in quantum systems could one day be used to help charge quantum batteries. For every process we observe in the universe, events appear to happen in only one ...