![]() ![]() And once that’s happened, and even those black holes have evaporated through Hawking Radiation, all that will be left are electrons and photons, and even they will be too far apart, due to galactic expansion, to interact. It’s the idea that once star formation has ceased, and all the stars that have been formed have run out of fuel, whatever’s left, like black holes and white dwarfs, will be swallowed up by the supermassive black holes at the centers of galaxies. In last week’s episode of StarTalk Radio, “ Cosmic Queries: A Stellar Smorgasbord,” guest astrophysicist Charles Liu, host Neil deGrasse Tyson and co-host Chuck Nice were talking about the heat death of the universe. It’s not often that we get to put Isaac Asimov and Joe Rogan together in the same sentence, but stick with me on this one and you’ll see why it makes perfect sense. The cover of my sadly out-of-print copy of “Nine Tomorrows” by Isaac Asimov. ![]()
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