Skip to main content

Up Next

Zero-Point Energy Demystified

Zero-Point Energy Demystified

Season 4 Episode 2
9:45
Suicide Space Robots

Suicide Space Robots

Season 4 Episode 3
6:00
Citizen Science

Citizen Science

Season 4 Episode 4
10:02
Extinction by Gamma-Ray Burst

Extinction by Gamma-Ray Burst

Season 4 Episode 7
9:48
What Do Stars Sound Like?

What Do Stars Sound Like?

Season 4 Episode 8
9:14
Horizon Radiation

Horizon Radiation

Season 4 Episode 9
12:03
The End of the Habitable Zone

The End of the Habitable Zone

Season 4 Episode 10
9:55
Kronos: Devourer Of Worlds

Kronos: Devourer Of Worlds

Season 4 Episode 11
7:42
What is Energy?

What is Energy?

Season 4 Episode 12
11:20
The Death of the Sun

The Death of the Sun

Season 4 Episode 13
9:01
Back to Show
PBS Space Time

The Vacuum Catastrophe

Season 4 Episode 1

If vacuum energy really does have the enormous value predicted by quantum field theory then our gently expanding, geometrically flat universe shouldn’t exist. This is the vacuum catastrophe.

Support Provided By
Season
Can the Universe Remember? Exploring Gravitational Memory
11:43
Gravitational tsunamis exist and we’re on the verge of being able to detect them.
How Can Humanity Become a Kardashev Type 1 Civilization?
18:40
Will we ever become a Kardeshev Type-1 civilization and how can we get there?
Do Neutron Stars Shine In Dark Matter?
14:05
New data is telling us that Neutron stars may make one of the most popular dark matter candidates.
What If the Cosmological Constant Is Not Constant?
15:14
Is Dark Energy Getting Weaker?
What If The Universe Did Not Start With The Big Bang?
16:08
Here’s the story we like to tell about the beginning of the universe.
The New Physics of Black Hole Star Capture | Extreme Tidal Disruption Events
17:44
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.
Can We Test Quantum Gravity?
16:51
Let’s talk about quantum gravity experiments that can be done here on Earth!
Is Gravity RANDOM Not Quantum?
19:25
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
Can We Create New Elements Beyond the Periodic Table
17:02
Have we reached the end of the line of discoverable elements?
Do Black Holes Have to Be Black?
15:32
Can we change the color of a black hole?
Was Penrose Right? New Evidence For Quantum Effects In The Brain
18:26
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
How To Detect Faster Than Light Travel
16:28
Faster than light travel may produce gravitational waves that we could see here on Earth.
Active loading indicator