How does LIGO capture gravitational waves?

Caltech scientist Jamie Rollins on the laser beam mechanism that LIGO uses to find tiny signals from gravitational waves.

Image credit: BBC

11 February 2016

2 minutes

This clip is from

The Documentary—A New Ear on the Universe

Gravitational Waves—The Documentary, A New Ear on the Universe
The tiny ripples that hold a key to our understanding of the universe.

What is a gravitational wave?
Duration: 01:52
Dramatic events in space that LIGO hopes to see
Duration: 01:38
What does the Ear on the Universe actually hear?
Duration: 01:27

The sounds of Europe's last primeval forest—Izabela in the forest
Duration: 03:04
God Will Get The Glory Now
Duration: 02:31
Perry
Duration: 07:22
Old Black Man at the Grave of his Son
Duration: 04:00