Back to Show
PBS Space Time
Was the Gravitational Wave Background Finally Discovered?!?
Season 9
Episode 20
A few weeks ago a large team of gravitational wave astronomers announced something pretty wild - pervasive ripples in the fabric of space time detected by the signals from rapidly spinning cores of dead stars in our galactic neighborhood. In other words, the gravitational wave background has probably been detected using a pulsar timing array.
Support Provided By

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?

15:05
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?