Measuring the Universe
Free on SceneLog — log in or create an account to track it.
Overview
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.
Comments
Be the first to comment.
Leave a comment
Your email won't be published. Comments are reviewed before they appear.