Wireva

Neil deGrasse Tyson says time travel to the future is possible but the past is not

Astrophysicist Neil deGrasse Tyson explains how relativity allows time to pass at different rates, making travel to the future conceivable, while returning to the past remains beyond known physics.

Monitoring item. The full text is not distributed. Extract and source below.

Astrophysicist Neil deGrasse Tyson explains how relativity allows time to pass at different rates, making travel to the future conceivable, while returning to the past remains beyond known physics.