You know how you leave a cup of hot tea out, and it slowly cools down? Well, imagine the entire universe doing that, but instead of tea, it's all about black holes! Stephen Hawking, the genius physicist, predicted that black holes aren't forever. But as they vanish, they'll release something called Hawking radiation, like a grand cosmic finale. So, the universe as we know it will eventually fade away, leaving us with a mind-boggling mystery to ponder over cosmic donuts and coffee.
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