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CU Physics Professor Paul Beale returns to the show for the 6,433rd time, mostly to answer a couple of fun listener questions, including: Will the planets in the solar system ever line up like in sci-fi movies or posters? And: If I drove I-25 from south WY border to north border staying on inside of the curves how many miles less would I drive compared to outer side of curves? And we'll also dig deep into nerdiness with this topic: An Atomic Clock Promises Link Between Quantum World and Gravity | Quanta Magazine