Skip to main content

Up Next

The Cosmic Dark Ages

The Cosmic Dark Ages

Season 5 Episode 22
12:29
The Alchemy of Neutron Star Collisions

The Alchemy of Neutron Star Collisions

Season 5 Episode 23
11:24
How Black Holes Kill Galaxies

How Black Holes Kill Galaxies

Season 5 Episode 24
11:20
The Quantum Internet

The Quantum Internet

Season 5 Episode 26
11:35
Did Time Start at the Big Bang?

Did Time Start at the Big Bang?

Season 5 Episode 27
12:30
What Caused the Big Bang?

What Caused the Big Bang?

Season 5 Episode 28
13:12
What Happened Before the Big Bang?

What Happened Before the Big Bang?

Season 5 Episode 29
10:23
How To Become an Astrophysicist

How To Become an Astrophysicist

Season 5 Episode 30
12:45
Is Earth's Magnetic Field Reversing?

Is Earth's Magnetic Field Reversing?

Season 5 Episode 31
12:46
Could We Terraform Mars?

Could We Terraform Mars?

Season 5 Episode 32
15:33
Is Pluto a Planet?

Is Pluto a Planet?

Season 5 Episode 33
14:03
Back to Show
PBS Space Time

Why Quantum Computing Requires Quantum Cryptography

Season 5 Episode 21

Quantum computing is cool, but you know what would be extra awesome - a quantum internet. In fact if we want the first we’ll need the latter. And the first step to the quantum internet is quantum cryptography.

Support Provided By
Season
Anti-gravity and the True Nature of Dark Energy
12:04
We’ve come a long way in our understanding of dark energy.
What Does Dark Energy Really Do?
9:50
How does dark energy affect the universe's expansion?
Why the Universe Needs Dark Energy
9:33
What's needed to determine the shape and geometry of our universe?
We Are Star Stuff
10:38
Stars are our stellar alchemists.
Will Starshot's Insterstellar Journey Succeed?
8:51
Starshot is an interstellar travel expedition unlike any other before it.
How Cosmic Inflation Flattened the Universe
10:17
The Big Bang Theory only gets us part of the way there.
Why is the Earth Round and the Milky Way Flat?
10:48
Our universe is not a very diverse place when it comes to shapes.
What’s Wrong With the Big Bang Theory?
9:56
We continue our search for a grand unifying theory of the Big Bang!
Why the Big Bang Definitely Happened
8:54
The actual moment of ‘the Big Bang’ is still a bit of a grey area within physics.
Should We Build a Dyson Sphere?
10:14
The Kepler telescope recently found a strange partial eclipse...possibly a Dyson Sphere.
How the Quantum Eraser Rewrites the Past
10:06
Causality is meant to move in one direction: forward.
LIGO's First Detection of Gravitational Waves!
7:29
Gravitational waves have officially been detected by LIGO!
Active loading indicator