The Origins Podcast with Lawrence Krauss

Announcing our new 12-part series: A dozen Lessons on Physics and Reality

Nov 23, 2025
Dive into a fascinating exploration of the universe with a practical guide to physics. The discussion spans from the vastness of cosmic scales to the microscopic realms of atoms. Krauss employs the 'powers of ten' to illustrate how our everyday experiences relate to the universe's grand design. Key topics include Earth's place among galaxies, the mysterious nature of dark matter, and the intricate behaviors of particles. This journey not only reveals our cosmic insignificance but celebrates the profound insights science offers about our origins.
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ANECDOTE

Chicago Walkthrough Anchors Scale

  • Krauss walks through successive 10× zoom-outs starting at one meter showing Chicago, stadiums, and city structure.
  • These visual examples anchor abstract scales in familiar everyday scenes.
INSIGHT

Human Detail Fades From Space

  • At million-meter and larger scales human detail disappears and planetary/weather features emerge.
  • Krauss shows the Earth from space and then expands to lunar orbit and planetary orbits.
INSIGHT

Human Probes Reach Far Beyond Humans

  • The tour passes through inner and outer solar system scales showing planetary orbits and spacecraft reach.
  • Human technology has reached roughly 10^13 meters via probes like Voyager and New Horizons.
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