The Sky at Night - Season 4 - Eps 8: Measuring the Universe
Patrick Moore talks to Sir Harold Spencer Jones F.R.S. The former Astronomer Royal about measuring distances which are literally astronomical. The greatest distance ever measured is that of a recently discovered galaxy whose light takes five thousand million years to reach the earth.
About The Sky at Night

Title: The Sky at Night
First Air Date: 1957-04-24
Last Air Date: 2025-08-15
Status: Returning Series
Rating: 8.3/10 (from 13 votes)
Language: EN
Seasons: 70
Total Episodes: 844
Network: BBC Four
Genres: Documentary, News
Production Companies: Unknown
Synopsis
Your monthly journey through the fascinating world of space and astronomy with the latest thinking on what's out there in space and what you can see in the night sky.