X

Join or Sign In

Sign in to customize your TV listings

Continue with Facebook Continue with email

By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.

PBS Space Time Season 4 Episodes

Season 4 Episode Guide

32 Episodes 2017 - 2018

Episode 1

The Vacuum Catastrophe

Thu, Nov 2, 201712 mins

Quantum Feidl Theory posits that every infinitesimal is imbued with a bit of energy, actually a great deal of energy, called the zero point energy. That is ok since its the difference in energy that matters, but not to General Relativty. Now the discovery of dark energy provides a measure of the zero point energy and the the quantum prediction is spectacularly wrong.

Where to Watch

Episode 2

Zero-Point Energy Demystified

Wed, Nov 8, 201710 mins

It's time for Matthew to do some debunking. According to Quantum Field Theory empty space is loaded with a tremendous amount of energy which has become a popular power source for all manner of exotic spacecraft engines. Sorry. They won't work.

Where to Watch

Episode 3

Suicide Space Robots

Wed, Nov 22, 2017

Where to Watch

Episode 4

Citizen Science + Zero-Point Challenge Answer

Wed, Nov 29, 2017

Where to Watch

Episode 5

Understanding the Uncertainty Principle with Quantum Fourier Species

Wed, Dec 6, 2017

Where to Watch

Episode 6

The Origin of Our First Interstellar Visitor

Wed, Dec 13, 2017

Where to Watch

Episode 7

Extinction by Gamma-Ray Burst

Wed, Dec 20, 2017

Where to Watch

Episode 8

Horizon Radiation

Tue, Jan 17, 2017

Where to Watch

Episode 9

The End of the Habitable Zone

Tue, Jan 24, 2017

Where to Watch

Episode 10

Kronos: Devourer Of Worlds

Wed, Jan 31, 2018

Where to Watch

Episode 11

What is Energy?

Wed, Feb 14, 2018

Where to Watch

Episode 12

The Death of the Sun

Wed, Feb 21, 2018

Where to Watch

Episode 13

The Trebuchet Challenge

Wed, Feb 28, 2018

Where to Watch

Episode 14

The Privatization of Space

Wed, Mar 7, 2018

Where to Watch

Episode 15

Hawking Radiation

Thu, Mar 15, 2018

Where to Watch

Episode 16

Detection of the First Stars And Trebuchet Challenge Answer

Wed, Mar 21, 2018

Where to Watch

Episode 17

The Andromeda-Milky Way Collision

Wed, Mar 28, 2018

Where to Watch

Episode 18

The Unruh Effect

Wed, Apr 4, 2018

Where to Watch

Episode 19

The Physics of Life

Wed, Apr 11, 2018

Where to Watch

Episode 20

Using Stars to See Gravitational Waves

Wed, Apr 18, 2018

Where to Watch

Episode 21

Black Hole Swarms

Wed, Apr 25, 2018

Where to Watch

Episode 22

The Star at the End of Time

Wed, May 2, 2018

Where to Watch

Episode 23

How Gaia Changed Astronomy Forever

Wed, May 9, 2018

Where to Watch

Episode 24

Noether's Theorem and The Symmetries of Reality

Wed, May 16, 201813 mins

Emmy Noether's theorem is one of the most fundamental principles of physics. It states that any conserved quantity has an corresponding physical symmetry and, likewise, and symmetry has a conserved quantity.

Where to Watch

Episode 25

Why Quantum Information is Never Destroyed

Wed, May 23, 2018

Where to Watch

Episode 26

What Survives Inside A Black Hole?

Wed, Jun 13, 2018

Where to Watch

Episode 27

The Black Hole Information Paradox

Wed, Jun 20, 2018

Where to Watch

Episode 28

How Asteroid Mining Will Save Earth

Wed, Jun 27, 2018

Where to Watch

Episode 29

Will A New Neutrino Change The Standard Model?

Wed, Jul 4, 2018

Where to Watch

Episode 30

Quantum Invariance & The Origin of The Standard Model

Wed, Jul 11, 201813 mins

How electromagnetism arises from gauge symmetry.

Where to Watch

Episode 31

The Misunderstood Nature of Entropy

Wed, Jul 18, 201812 mins

Where to Watch

Episode 32

Reversing Entropy with Maxwell's Demon

Wed, Jul 25, 2018

Where to Watch