The Royal Institution Christmas Lectures
Onwards to the Stars
1981 • E4 Dec 31, 1981 40m
The range of measurement now possible has enabled us to know not only the size of atoms only a few 100-millionths of a centimetre across, but also the distance of galaxies so far away that light travelling from them takes thousands of millions of years to reach us. Between these extremes we shall see how the scale of our everyday life fits intricately into the immensity of the universe.