Back to Show
PBS Space Time
How Will We (Most Likely) Discover Alien Life?
Season 9
Episode 29
The first discovery of extraterrestrial life will almost certainly NOT be when it visits us, nor when we visit it. It’ll be in the excruciatingly faint changes in the color of alien sunsets glimpsed hundreds of light years away. Today we’re going to talk about the first such hint, why it's probably not aliens, and why there’s a tiny chance that it still might not not be aliens.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.

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...

12:51
We only recently figured out where cosmic rays are coming from.

13:28
Black hole complementarity may force us to rethink what it means to say that it exists.

20:15
To travel the stars without faster than light travel we’re going to need a generation ship.

16:19
Today we are jumping into a black hole. Again.