A very accurate mirror

In 1987 Sir Patrick Moore gets a glimpse of the 4.2m mirror used in the William Herschel Telescope.

14 September 2010

2 minutes

This clip is from

The Sky at Night—The William Herschel Telescope

Engineering the William Herschel Telescope
Duration: 03:06

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