Up Next
Is It Impossible To Cross The Event Horizon? | Black Hole Firewall Paradox
Season 10
Episode 12
17:25
Back to Show
PBS Space Time
Dark Forest: Should We Not Contact Aliens?
Season 10
Episode 3
In 1974 we sent the Arecibo radio message towards Messier 13. The message was mostly symbolic; we weren’t really expecting a reply. Yet surely other civilisations out there are doing the same thing. So, why haven’t we heard anything? What if the silence from the stars is a hint that we shouldn’t be so outgoing? What if aliens are deliberately keeping quiet for fear that they might be destroyed?
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
18:32
The holy grail of physics is a quantum theory of gravity. What if it’s not possible?
18:32
Alien life will most likely be discovered by faint changes in the color of alien sunsets.
12:05
The 2023 Physics Nobel prize has been awarded to three physicists for attosecond physics.
15:59
With the James Webb Space Telescope we’ve now seen the earliest star ever detected.
17:24
Some are arguing that Many Worlds and Pilot Wave are really the same.
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.
11:49
Did JWST just find a new type of star powered by dark matter?
16:21
Did we just uncover new evidence to support Cold Dark Matter?
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.