
AaS! 275: Why Can't the Universe Be Cyclic?
Jul 7, 2026 - 31:56
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What does "antimatter" actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a missing scientist? I discuss these questions and more in today's Ask a Spaceman! Sup...
AaS! 272: Are Neutrinos Their Own Evil Twins? is an episode from Ask a Spaceman! by Paul M. Sutter. What does "antimatter" actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a miss...
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Published May 19, 2026, 34:30 long, audio available.