Back to Show
NOVA
Interview: Discovering Dark Energy and the Hubble Tension with Nobel Prize Winner Adam Riess
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.
Support Provided By
53:35
How did massive volcanic eruptions, inland seas, and land bridges pave the way for life?
53:35
Experience the colossal geologic forces that shaped our continent over 3 billion years.
Unlock with PBS Passport
53:41
Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.
Unlock with PBS Passport
53:10
Which technologies worked in the race to track down the men behind the marathon attack?
Unlock with PBS Passport
52:53
Can science help us understand why some people commit horrific acts of mass murder?
Unlock with PBS Passport
52:52
A team uncovers the advanced engineering behind an ancient Egyptian war machine.
53:10
Is our universe unique, or could it be just one in an endless "multiverse"?
53:40
Take a wild ride into the quantum realm, where even the impossible seems possible.
53:40
It defines our lives, but what is time really? Have a look into its true nature.
53:40
Surprising clues indicate that space is very much something and not nothing.