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Time travel, with Lawrence Krauss

From HG Well’s The Time Machine, to Doctor Who and Back to the Future, time travel has become a beloved staple of science fiction. But will humans ever actually be able to jump through time? According to physics, quite possibly. To explain this today, we’re joined by Lawrence Krauss, theoretical physicist and author of the new book The Known Unknowns: The Unsolved Mysteries of the Cosmos. He delves into the strangest theories of time travel, time tourism, and also what most time travel movies get wrong. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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  Sustainability Special - Solving the world’s plastic pollution problem

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  Sustainability Special – How can we make our food more secure?

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  What mass extinctions can teach us about the future of life on Earth

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  Neil DeGrasse Tyson explains the Universe’s greatest mysteries

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  The bizarre science of cat behaviour

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  The truth about fasting and time-restricted eating

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  Why we should be doing more to prepare for contact with alien civilisations

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  Busting testosterone myths

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  The Science of De-extinction

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  How science can help you make better decisions

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  How dementia affects the brain, and how we’ll one day beat it

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  How AI is changing the world of scams

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  How False Memories can trick your mind

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  What we’re all getting wrong about ADHD

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  The new world of AI relationships, with Marco Dehnert

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  Why the next gold rush is happening at the bottom of the ocean