Big Freeze, Big Rip, Big Crunch, Bounce or vacuum decay? Steven Strogatz speaks with theoretical cosmologist Katie Mack about the five ways that scientists think the universe could come to an end. The post How Will the Universe End? first appeared on Quanta Magazine 

Our universe has a beginning. And someday, it will have an end too — but which one? As the cosmos expands and the stars and galaxies grow dim, will everything slowly become colder and more isolated? Could the dark energy that’s accelerating the expansion of the universe eventually rend apart spacetime? Would it be possible for our world and the rest of the universe to one day just cease to exist…

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