Uploaded June 2021 | Updated September 2026, 3 weeks ago

---

Full podcast episodes: askaspaceman.com
Support: patreon.com/pmsutter
Follow: twitter.com/PaulMattSutter and facebook.com/PaulMattSutter

How did Einstein develop General Relativity? What does it mean for space to be curved anyway? And just how do these gravitational waves work, anyhow? I answer these questions and more in today’s Ask a Spaceman!

Follow all the show updates at http://www.askaspaceman.com, and help support the show at patreon.com/pmsutter!

Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain.

00:00 Measuring the Age of the Universe
04:05 The Cosmic Microwave Background
06:55 Supernovae
08:59 The “Crisis” in Cosmology
12:52 Potential Solutions

Video credits: NASA, ESA, Planck, WMAP, Illustris