Is Dark Energy Getting Stronger?

The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue

Season 5 Episode 15 Length 14:31 Premiere: 03/20/19

Recent Episodes

The Universe Has Been Expanding Since the Big Bang. Just Not How We Thought.

S11 E32 Length 17:40 Premiere Date 07/16/26

The Quantum Experiment That Breaks Time

S11 E31 Length 16:28 Premiere Date 07/02/26

We Thought Black Holes Created Event Horizons. It Might Be the Opposite

S11 E30 Length 17:39 Premiere Date 06/18/26

We’ve Been Looking for Aliens for 70 Years. We've Been Doing It Wrong All Along

S11 E29 Length 20:48 Premiere Date 06/04/26

We Thought Black Holes Ended in Singularities. They Might End In a Frozen Big Bang

S11 E28 Length 14:27 Premiere Date 05/21/26

We Found Galaxies Too Old for the Universe

S11 E27 Length 17:41 Premiere Date 04/30/26

Clips & Previews

Quantum Physics in a Mirror Universe

Preview Length 12:19 Premiere Date 12/17/18

Specials

Black Holes. Explained. For 1.5 Hours.

Length 1:38:18 Premiere Date 12/18/25

Strange Stars

Length 09:58 Premiere Date 03/01/17

Did Dark Energy Just Disappear?

Length 12:22 Premiere Date 02/16/17

The Many Worlds of the Quantum Multiverse

Length 12:52 Premiere Date 02/09/17

The First Humans on Mars

Length 07:51 Premiere Date 02/02/17

Life on Europa?

Length 09:37 Premiere Date 01/18/17

Self-Replicating Robots and Galactic Domination

Length 09:57 Premiere Date 12/25/16

Season 5 Episodes

Show Episodes

Show Clips & Previews

How To Capture Black Holes

S5 E45 Length 12:02 Premiere Date 01/13/20

How To Detect a Neutrino

S5 E44 Length 09:54 Premiere Date 01/06/20

Do Black Holes Create New Universes?

S5 E43 Length 12:24 Premiere Date 12/17/19

The Doomsday Argument

S5 E42 Length 12:50 Premiere Date 12/09/19

Is The Universe Finite?

S5 E41 Length 12:25 Premiere Date 12/02/19

Can You Observe a Typical Universe?

S5 E40 Length 13:36 Premiere Date 11/18/19

Does Life Need a Multiverse to Exist?

S5 E39 Length 13:09 Premiere Date 11/11/19

Why We Might Be Alone in the Universe

S5 E38 Length 12:24 Premiere Date 11/04/19

Is Time Travel Impossible?

S5 E37 Length 12:33 Premiere Date 10/21/19

Loop Quantum Gravity Explained

S5 E36 Length 13:49 Premiere Date 10/15/19

Black Hole Harmonics

S5 E35 Length 13:11 Premiere Date 10/07/19

How Many Universes Are There?

S5 E34 Length 14:03 Premiere Date 09/30/19

Is Pluto a Planet?

S5 E33 Length 14:03 Premiere Date 09/23/19

Could We Terraform Mars?

S5 E32 Length 15:33 Premiere Date 09/16/19

Is Earth's Magnetic Field Reversing?

S5 E31 Length 12:46 Premiere Date 09/03/19

How To Become an Astrophysicist

S5 E30 Length 12:45 Premiere Date 08/26/19

What Happened Before the Big Bang?

S5 E29 Length 10:23 Premiere Date 08/19/19

What Caused the Big Bang?

S5 E28 Length 13:12 Premiere Date 08/06/19

Did Time Start at the Big Bang?

S5 E27 Length 12:30 Premiere Date 07/18/19

The Quantum Internet

S5 E26 Length 11:35 Premiere Date 07/15/19

Thorium and the Future of Nuclear Energy

S5 E25 Length 16:05 Premiere Date 07/01/19

How Black Holes Kill Galaxies

S5 E24 Length 11:20 Premiere Date 06/17/19

The Alchemy of Neutron Star Collisions

S5 E23 Length 11:24 Premiere Date 06/06/19

The Cosmic Dark Ages

S5 E22 Length 12:29 Premiere Date 05/16/19

Why Quantum Computing Requires Quantum Cryptography

S5 E21 Length 13:58 Premiere Date 05/09/19

The Real Science of the EHT Black Hole

S5 E20 Length 11:07 Premiere Date 05/01/19

No Dark Matter = Proof of Dark Matter?

S5 E19 Length 10:37 Premiere Date 04/24/19

The Holographic Universe Explained

S5 E18 Length 14:39 Premiere Date 04/10/19

The Edge of an Infinite Universe

S5 E17 Length 15:16 Premiere Date 04/03/19

Could the Universe End by Tearing Apart Every Atom?

S5 E16 Length 13:21 Premiere Date 03/28/19