Science

time travel clock

This hour, we explore our obsession with time travel. Why is such a recurring them in movies and TV shows? And what can time travel teach us about ourselves?More

Stopping the clock
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Maybe time has its origins in grief and longing for people we've lost. That idea certainly resonates with theoretical physicist Ron Mallett. He's spent a lot of his career studying time — which he traces back to the tragedy that marked his childhood.More

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