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Home / Series / The Sky At Night / Aired Order / Season 1961 / Episode 2
Home / Series / The Sky At Night / Absolute Order / Season 1 / Episode 446
Home / Series / The Sky At Night / Absolute Order / Season 1 / Episode 744

The respective theories of Prof Sir Martin Ryle and Prof Fred Hoyle.

English
  • Originally Aired February 23, 1961
  • Runtime 30 minutes
  • Content Rating United States of America TV-G
  • Network BBC Four
  • Created August 3, 2015 by
    Administrator admin
  • Modified August 3, 2015 by
    Administrator admin
Name Type Role
Prof WH McGregor Guest Star