Up Next
Back to Show
PBS Space Time
The Origin of Matter and Time
Season 2
Episode 14
We’ve broken down our preconceived notions about mass and time, now let’s redefine what they really are. Since we know that time is not a universal constant, what is? Matt defines causal order and explains how even though time may look different to multiple observers, it is the one concrete reality that we can all agree on.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
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.
16:42
Could LIGO find alien spacecraft accelerating to near light speed?
15:51
How can we tell the difference between fermions & bosons? Statistical Mechanics!
13:25
Why has a newly discovered a black hole started pointing directly at us?
15:57
There’s a hard limit to humanity’s expansion in the universe. So, how big can we get?
16:49
Let’s figure out the absolute limit of our future view of the universe!
16:34
Let see if Black Holes and Dark Energy are the same thing!