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Interview: Discovering Dark Energy and the Hubble Tension with Nobel Prize Winner Adam Riess

1hr 16m 19s

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.

Aired: 12/18/25
National Corporate funding for NOVA is provided by Carlisle Companies and Viking Cruises. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.
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