90 - Quintessence: Is Dark Energy Changing? (Ft. Sean Carroll)

Why This Universe? by Dan Hooper, Shalma Wegsman

Nov 4, 202441:43Science & Medicine

Is it possible that dark energy is not a constant, but rather is changing over time? Sean Carroll talks to us about how our understanding of dark energy evolved in recent history, and what is still left unknown.For exclu...

Related Episodes

Continue listening to more episodes from Why This Universe?.

98 - An Improbable Quantum Ghost Story (Ft. David Kaplan)

Jan 19, 2026 - 41:21

An unlikely change in the theory of quantum mechanics would lead to bizarre new conclusions. Our guest ta...

97 - The Schrödinger Equation: The Heart of Quantum Mechanics

Dec 22, 2025 - 29:52

Quantum mechanics is full of surprises. But somehow, the theory is captured almost entirely in a single e...

96 - The Making of Particle Fever (Ft. David Kaplan)

Nov 24, 2025 - 53:24

In the years leading up to the Large Hadron Collider turning on, the physics community was buzzing with c...

95 - Would Aliens Have the Same Physics? (Ft. Daniel Whiteson)

Nov 4, 2025 - 43:10

If we met aliens, could we communicate through physics? Daniel Whiteson explores this question on today&a...

38 - The Nobel Prize's Greatest Misses (2025 Update)

Oct 13, 2025 - 34:29

In honor of Nobel prize season, we remember some people whose important work in the past has been overloo...

94 - Inside the Hubble Tension (Ft. Adam Riess)

Sep 29, 2025 - 31:55

Our universe is expanding. But when physicists measure how fast this expansion rate is, they get two diff...

93 - The Moment Dark Energy Appeared (Ft. Adam Riess)

Sep 15, 2025 - 40:23

Adam Riess recounts the moments of his Nobel prize-winning discovery that our universe is expanding at an...

AUA: Changing Dark Energy, Twin Paradox, and What's Next for CERN

May 2, 2025 - 54:36

We answer your questions. To listen to our backlog of ask-us-anything episodes for free, head to our Patr...