Paradox-Free Time Travel Is Theoretically Possible, Researchers Say

A dog dressed as Marty McFly from Back to the Future attends the 25th Annual Tompkins Square Halloween Dog Parade in 2015. New research says time travel might be possible without the problems McFly encountered.

In the peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn’t necessarily cause a universe-ending paradox. Phew.

(Image credit: Timothy A. Clary/AFP via Getty Images)


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