Discovering Dark Energy and the Hubble Tension with Adam Riess

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Previously titled “Discovering Dark Energy and the Hubble Tension | Extended Interview with Nobel Prize Winner Adam Riess” — renamed by the publisher on Aug 4, 2026

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Recorded18 Dec 2025

Publisherpublicfeeds.net ↗

Handlerec:14757842

Show notes

What does it feel like to make one of the biggest discoveries in physics? Adam Riess knows — because his work revealed that the universe isn’t just expanding, it’s accelerating. In this episode, the Nobel Prize–winning astrophysicist takes us behind the scenes of the moment that changed cosmology forever. How did his team use exploding stars as “standard candles” to measure the cosmos? Why did the data point to a mysterious force now called dark energy, making up nearly 70% of the universe? And what’s behind today’s biggest cosmic puzzle: the Hubble tension? Plus, Adam shares what new telescopes could uncover — and why the next decade might rewrite the laws of physics all over again. Learn more about NOVA and subscribe to our YouTube channel. —————————Guest Bio: Adam Riess is an astrophysicist, professor at Johns Hopkins University, and a distinguished astronomer at Space Telescope Science Institute. In 2011, he was named as a co-winner of the Nobel Prize in Physics for his contributions to the discovery that the expansion rate of the universe is accelerating. Since then, he has continued refining measurements of cosmic expansion and the Hubble constant, aiming to find and measure the most distant type Ia supernovae known, to probe the origin of cosmic acceleration.

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