Back to Show
PBS Space Time
Secrets of the Cosmic Microwave Background
Season 5
Episode 12
Hook up an old antenna to your TV and scan between channels. The static buzz you hear is mostly due to the ambient radio produced by our noisy pre-galactic civilization. But around one percent of that buzz is something very different – it’s the cosmic microwave background radiation.
Support Provided By

15:14
Is Dark Energy Getting Weaker?

16:08
Here’s the story we like to tell about the beginning of the universe.

17:44
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.

16:51
Let’s talk about quantum gravity experiments that can be done here on Earth!

19:25
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?

17:02
Have we reached the end of the line of discoverable elements?

15:32
Can we change the color of a black hole?

18:26
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.

16:28
Faster than light travel may produce gravitational waves that we could see here on Earth.

20:07
All particles belong to two large groups: fermions and bosons.

16:11
Just how much stronger is this year’s solar activity going to get?

17:25
So you’ve decided to jump into a black hole...