Skip to main content

Up Next

Can Viruses Travel Between Planets?

Can Viruses Travel Between Planets?

Season 6 Episode 18
13:58
What Happens After the Universe Ends?

What Happens After the Universe Ends?

Season 6 Episode 19
14:34
Building Black Holes in a Lab

Building Black Holes in a Lab

Season 6 Episode 20
13:12
Dissolving an Event Horizon

Dissolving an Event Horizon

Season 6 Episode 21
11:32
How Stars Destroy Each Other

How Stars Destroy Each Other

Season 6 Episode 24
10:41
How Do We Know What Stars Are Made Of?

How Do We Know What Stars Are Made Of?

Season 6 Episode 26
11:13
The Truth About Beauty in Physics

The Truth About Beauty in Physics

Season 6 Episode 27
13:29
Could Life Evolve Inside Stars?

Could Life Evolve Inside Stars?

Season 6 Episode 28
10:47
Solving Quantum Cryptography

Solving Quantum Cryptography

Season 6 Episode 29
14:39
Back to Show
PBS Space Time

Does Gravity Require Extra Dimensions?

Season 6 Episode 17

It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds - but those secrets may be revealed by turning back to the Cavendish experiment. That steampunk contraption may even reveal the existence of extra dimensions of space.

Only Available with Passport Starting