Skip to main content

Up Next

Is Time Travel Impossible?

Is Time Travel Impossible?

Season 5 Episode 37
12:33
Why We Might Be Alone in the Universe

Why We Might Be Alone in the Universe

Season 5 Episode 38
12:24
Does Life Need a Multiverse to Exist?

Does Life Need a Multiverse to Exist?

Season 5 Episode 39
13:09
Can You Observe a Typical Universe?

Can You Observe a Typical Universe?

Season 5 Episode 40
13:36
Is The Universe Finite?

Is The Universe Finite?

Season 5 Episode 41
12:25
The Doomsday Argument

The Doomsday Argument

Season 5 Episode 42
12:50
Do Black Holes Create New Universes?

Do Black Holes Create New Universes?

Season 5 Episode 43
12:24
How To Detect a Neutrino

How To Detect a Neutrino

Season 5 Episode 44
9:54
How To Capture Black Holes

How To Capture Black Holes

Season 5 Episode 45
12:02
What if Singularities DO NOT Exist?

What if Singularities DO NOT Exist?

Season 10 Episode 1
14:44
What Happens If We Nuke Space?

What Happens If We Nuke Space?

Season 10 Episode 2
15:13
Back to Show
PBS Space Time

Loop Quantum Gravity Explained

Season 5 Episode 36

It’s time we talked about loop quantum gravity. What exactly is it? What are the loops? And can it really defeat string theory in our quest for a Theory of Everything?

Support Provided By
Season
Dark Forest: Should We Not Contact Aliens?
14:12
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
What Happens If We Nuke Space?
15:13
So what exactly is an EMP, and how dangerous are they?
What if Singularities DO NOT Exist?
14:44
The terrible singularity at the heart of the black hole may be no more.
Did JWST Solve The Mystery of Supermassive Black Hole Origin
14:33
We may have solved the mysterious origins of supermassive black holes in our universe.
Does Antimatter Create Anti-Gravity?
16:30
Does antimatter fall down, or does it fall up?
Can The Crisis in Cosmology Be Solved With Cosmic Voids?
14:29
Could cosmic voids be driving the universe?
What If There's A Black Hole Inside The Sun?
17:53
Is there a black hole hiding in the core of the Sun eating it from the inside out?
What if Humans Are Not Earth's First Civilization?
19:19
What if we aren't the first technological civilization on Earth?
Does Many Worlds Explain Quantum Probabilities?
19:03
Many World’s lack wavefunction collapse might be the key to the measurement problem.
What If Gravity is Not Quantum?
18:32
The holy grail of physics is a quantum theory of gravity. What if it’s not possible?
How Will We (Most Likely) Discover Alien Life?
18:32
Alien life will most likely be discovered by faint changes in the color of alien sunsets.
Why Did Attosecond Physics Win the Nobel Prize?
12:05
The 2023 Physics Nobel prize has been awarded to three physicists for attosecond physics.
Active loading indicator