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Listen "AaS! 25: How Do We Know How Far Away Stuff Is...Far Away?"
Episode Synopsis
How do we measure distances to…well, distant objects? What the heck is a Cepheid, and why is it useful? Standard candles? Standard rulers? Standard spheres? It all seems a bit much, don't you think? I answer these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman on Twitter@PaulMattSutter and Facebook/PaulMattSutter for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain.
More episodes of the podcast Ask a Spaceman!
AaS! 253: What Does Outer Space Sound Like?
05/08/2025
AaS! 251: Are the Cosmic Voids Really Empty?
08/07/2025
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