Space-Time Expansion, Explained | Adam Riess
Podcast: NOVA PresentsPublished On: Wed Mar 04 2026
Description: If the universe is expanding, why aren’t galaxies stretching apart? Cosmologist Adam Riess breaks down the physics behind cosmic expansion, the forces that resist it, and why dark energy dominates the vast spaces between.For more, check out the extended interview with Adam Riess.Learn more about NOVA and subscribe to our YouTube channel.
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