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PBS Space Time
How We Know The Universe is Ancient
Season 6
Episode 14
The universe is precisely 13.8 billion year old - or so our best scientific methods tell us. But how do you learn the age of the universe when there’s no trace left of its beginnings?
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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.
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!