Skip to main content
Donate

Up Next

Can We Survive the Destruction of the Earth?

Can We Survive the Destruction of the Earth?

Season 2 Episode 38
10:34
Will Mars or Venus Kill You First?

Will Mars or Venus Kill You First?

Season 2 Episode 15
8:44
How the Quantum Eraser Rewrites the Past

How the Quantum Eraser Rewrites the Past

Season 2 Episode 39
10:06
LIGO's First Detection of Gravitational Waves!

LIGO's First Detection of Gravitational Waves!

Season 2 Episode 16
7:29
Should We Build a Dyson Sphere?

Should We Build a Dyson Sphere?

Season 2 Episode 40
10:14
Is There a Fifth Fundamental Force? + Quantum Eraser Answer

Is There a Fifth Fundamental Force? + Quantum Eraser Answer

Season 2 Episode 41
8:21
Why the Big Bang Definitely Happened

Why the Big Bang Definitely Happened

Season 2 Episode 18
8:54
Self-Replicating Robots and Galactic Domination

Self-Replicating Robots and Galactic Domination

Season 2 Episode 42
9:48
What’s Wrong With the Big Bang Theory?

What’s Wrong With the Big Bang Theory?

Season 2 Episode 19
9:56
Life on Europa?

Life on Europa?

Season 2 Episode 44
9:33
Why is the Earth Round and the Milky Way Flat?

Why is the Earth Round and the Milky Way Flat?

Season 2 Episode 20
10:48
Are We Alone? Galactic Civilization Challenge

Are We Alone? Galactic Civilization Challenge

Season 2 Episode 45
6:19
Back to Show
PBS Space Time

The Origin of Matter and Time

Season 2 Episode 14

We’ve broken down our preconceived notions about mass and time, now let’s redefine what they really are. Since we know that time is not a universal constant, what is? Matt defines causal order and explains how even though time may look different to multiple observers, it is the one concrete reality that we can all agree on.
Stream on your TV