Skip to main content

Up Next

Dark Flow

Dark Flow

Season 3 Episode 34
12:29
The Geometry of Causality

The Geometry of Causality

Season 3 Episode 12
10:34
The One-Electron Universe

The One-Electron Universe

Season 3 Episode 35
9:11
Telescopes of Tomorrow

Telescopes of Tomorrow

Season 3 Episode 13
9:49
Extraterrestrial Superstorms

Extraterrestrial Superstorms

Season 3 Episode 36
10:49
First Detection of Life

First Detection of Life

Season 3 Episode 37
10:34
The Treasures of Trappist-1

The Treasures of Trappist-1

Season 3 Episode 15
8:47
White Holes

White Holes

Season 3 Episode 38
12:25
Time Crystals!

Time Crystals!

Season 3 Episode 17
9:36
Back to Show
PBS Space Time

Why Quasars are so Awesome

Season 3 Episode 11

When Quasars were first discovered the amount of light pouring out of such a tiny dot in space seemed impossible. A hysterical flurry of hypothesizing followed: swarms of neutron stars, alien civilizations harnessing their entire galaxy’s power, bright, fast-moving objects being ejected by our own galaxy’s core.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
The Impossibility of Perpetual Motion Machines
12:28
Perhaps the most persistent nonsense in physics: the perpetual motion machine.
Secrets of the Cosmic Microwave Background
13:53
Secrets of the Cosmic Microwave Background
Sound Waves from the Beginning of Time
12:48
Sound Waves from the Beginning of Time
Perpetual Motion From Negative Mass?
14:28
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples?
The Crisis in Cosmology
13:17
The hubble constant--the rate of expansion of our universe--has consumed astronomers.
Our Antimatter, Mirrored, Time-Reversed Universe
13:50
The foundations of quantum theory rests on its symmetries.
Are Dark Matter And Dark Energy The Same?
13:08
Astronomers are the worst at naming things. Dark energy AND dark matter?
Why String Theory is Wrong
15:07
Why String Theory is Wrong
Quantum Physics in a Mirror Universe
12:18
What you think is a perfect reflection might be universe that is fundamentally different.
Did Life on Earth Come from Space?
14:20
Did life on Earth originate on another planet?
'Oumuamua Is Not Aliens
13:04
It’s never aliens … until it is. So let’s talk about ‘oumuamua.
Are Virtual Particles A New Layer of Reality?
13:43
Let me tell you a story about virtual particles. It may or may not be true.
Active loading indicator