Christopher Nolan’s Interstellar has left many people perplexed. And it isn’t because of its many plot holes or piss poor dialogue. No, the movie, touted as being on the forefront of speculative science has the audience scratching their heads over the difference between a black hole and a wormhole. But just how much AP physics are you going to need before going to watch Interstellar?

Fear not boys and girls, for today, on The Evening Edition, we’re going to give you a crash course on everything you need to know to better understand the science of Nolan’s Interstellar.

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