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What If The Speed of Light is NOT CONSTANT?

One of the most fundamental physics facts is that the speed of light in a vacuum is constant for all observers. But can we really be sure? In fact, variable speed of light theories have long been used to try to explain everything from dark energy to gravity itself. Let’s explore how constant this fundamental constant really is.
Season 9 Episode 17 Length 15:05 Premiere: 07/19/23

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Season 9 Episodes

Did JWST Solve The Mystery of Supermassive Black Hole Origin
S9 E36 Length 14:33 Premiere Date 02/14/24

Does Antimatter Create Anti-Gravity?
S9 E35 Length 16:30 Premiere Date 01/17/24

Can The Crisis in Cosmology Be Solved With Cosmic Voids?
S9 E34 Length 14:29 Premiere Date 01/10/24

What If There's A Black Hole Inside The Sun?
S9 E33 Length 17:53 Premiere Date 12/20/23

What if Humans Are Not Earth's First Civilization?
S9 E32 Length 19:19 Premiere Date 12/07/23

Does Many Worlds Explain Quantum Probabilities?
S9 E31 Length 19:03 Premiere Date 11/30/23

What If Gravity is Not Quantum?
S9 E30 Length 18:32 Premiere Date 11/09/23

How Will We (Most Likely) Discover Alien Life?
S9 E29 Length 18:32 Premiere Date 11/02/23

Why Did Attosecond Physics Win the Nobel Prize?
S9 E28 Length 12:05 Premiere Date 10/19/23

JWST Discovered The Farthest Star Ever Seen!
S9 E27 Length 15:59 Premiere Date 10/12/23

Are Many Worlds & Pilot Wave The Same Theory?
S9 E26 Length 17:24 Premiere Date 09/28/23

Are Room Temperature Superconductors Impossible?
S9 E25 Length 18:00 Premiere Date 09/20/23

What New Science Would We Discover with a Moon Telescope?
S9 E24 Length 20:39 Premiere Date 09/13/23

What If Space is Not Empty?
S9 E23 Length 14:59 Premiere Date 08/24/23

Did JWST Discover Dark Matter Stars?
S9 E22 Length 11:49 Premiere Date 08/16/23

Do We Need a New Dark Matter Model?
S9 E21 Length 16:21 Premiere Date 08/02/23

Was the Gravitational Wave Background Finally Discovered?!?
S9 E20 Length 15:51 Premiere Date 07/26/23

What If The Speed of Light is Not Constant?
S9 E19 Length 15:05 Premiere Date 07/19/23

Does Axionic Dark Matter Bind Galaxies Together?
S9 E18 Length 14:39 Premiere Date 06/28/23

Did AI Prove Our Proton Model Wrong?
S9 E17 Length 16:24 Premiere Date 06/21/23

What If The Speed of Light is NOT CONSTANT?
S9 E17 Length 15:05 Premiere Date 07/19/23

What Supernova Distance Would Trigger Mass Extinction?
S9 E16 Length 15:16 Premiere Date 06/14/23

Could We Move Planet Earth Across the Universe?
S9 E15 Length 12:14 Premiere Date 06/14/23

Is 'Perpetual Motion' Possible with Superfluids?
S9 E14 Length 16:00 Premiere Date 05/31/23

Could LIGO Find Massive Alien Spaceships?
S9 E13 Length 16:42 Premiere Date 05/17/23

Fermions Vs. Bosons Explained with Statistical Mechanics!
S9 E12 Length 15:51 Premiere Date 05/11/23

New Discovery About Supermassive Black Holes Explained!
S9 E11 Length 13:25 Premiere Date 04/20/23

How Far Beyond Earth Could Humanity Spread?
S9 E10 Length 15:57 Premiere Date 04/12/23

How Much Of The Universe Can Humanity Ever See?
S9 E9 Length 16:49 Premiere Date 03/29/23

What If Black Holes Are Dark Energy?
S9 E8 Length 16:34 Premiere Date 03/22/23

What’s Your Brain’s Role in Creating Space & Time?
S9 E7 Length 16:28 Premiere Date 03/15/23

Are Space and Time Real?
S9 E6 Length 18:58 Premiere Date 02/23/23

How Does The Nucleus Hold Together?
S9 E5 Length 14:28 Premiere Date 02/15/23

How Does the Earth Really Move Through The Galaxy?
S9 E4 Length 16:29 Premiere Date 02/08/23

What If Alien Life Were Silcon-Based?
S9 E3 Length 14:47 Premiere Date 01/26/23

What If The Universe Is Math?
S9 E2 Length 17:33 Premiere Date 01/18/23

The New Science of Moon Formation
S9 E1 Length 15:32 Premiere Date 01/11/23

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