Time travel has long been a favorite idea in science fiction. Stories about changing the past or visiting the future have ...

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What if our biggest idea about reality is built on a hidden misunderstanding? A new philosophical look at space-time challenges the popular view that the past, present, and future all exist together ...

While most time travel movies ignore quantum physics, Christopher Nolan's Intersteller, Avengers: Endgame, Planet of the Apes ...

Last May I received this text message: “I know it’s been a while. We’re approaching our final space flight with our current spaceship. I thought this could be a great time for you to see the ...

Space is an unnatural environment for humans. We can't survive unprotected in a pure vacuum for more than two minutes. Getting to space involves being strapped to a barely contained chemical explosion ...