What is a galaxy?

Sir Patrick Moore and his guests explain what galaxies are and discuss some of their interesting features.

12 August 2010

5 minutes

This clip is from

The Sky at Night—Neighbourhood Watch

Great explanations
A collection of videos clips that explain tricky-to-understand astronomy topics.
Astronomy Finder
Watch Solar System video clips from the BBC Archive.

How to see the Milky Way
Duration: 02:25
Herschel and Planck launch
Duration: 05:42

Strange Spirals in the Sky—Space Mysteries: The Sky at Night Meets Curious Cases
Duration: 03:30
Doughnut Universe?—Space Mysteries: The Sky at Night Meets Curious Cases
Duration: 01:11
Space Penguins!—Space Mysteries: The Sky at Night Meets Curious Cases
Duration: 00:57
Maggie's Favourite Space Sound—Space Mysteries: The Sky at Night Meets Curious Cases
Duration: 01:14