Up Next
Back to Show
PBS Space Time
What if Humans Are Not Earth's First Civilization?
Season 9
Episode 32
We’re almost certainly the first technological civilization on Earth. But what if we’re not? We are. Although how sure are we, really? The Silurian hypothesis, which asks whether pre-human industrial civilizations might have existed.
Support Provided By
18:00
What if we could produce superconductivity at room temperature? It would change the world.
20:39
We may need to build a radio telescope in the quietest place nearby - the moon!
14:59
Spacetime on its smallest scale is an ocean of black holes and wormholes...or so we think.
15:51
The gravitational wave background has probably been detected using a pulsar timing array.
15:05
Let’s explore how constant this speed of light fundamental constant really is.
14:39
Dark matter may be a quantum mechanical wave that literally holds galaxies together.
16:24
Has AI proven that the proton is made of 5 quarks rather than 3 quarks?
15:16
How close is too close for supernova explosions?
12:14
Could we turn our solar system into a spaceship and drive the Sun around the galaxy?
16:00
If we want to see quantum weirdness with our eyes, we’ll need Bose-Einstein Condensates.