1965
Episodes
1 Unwelcome Atmosphere Jan 15, 1965 2 Up in a Balloon Feb 12, 1965 3 Lava or Dust? Mar 12, 1965 4 Ancient Lore Apr 2, 1965 5 Naked Eye Astronomy Apr 30, 1965 6 How Long is a Day? Jun 4, 1965 7 Space Weather Jun 25, 1965 8 Communicating with Other Worlds Jul 23, 1965 9 Mars in Shot Aug 20, 1965 10 Re-thinking the Universe Sep 17, 1965 11 Ninety-Eight Inches Oct 8, 1965 12 The Unsteady Universe Nov 5, 1965 13 The Extra Planet Dec 3, 1965