24:47

Exploration of the Planets (1971)

28:24

Within this Decade: America in Space - 1969

28:32

Planet Mars: 1979

23:49

Nuclear Propulsion in Space

25:10

The Knowledge Bank (1971)

26:29

Eight Months to Mars

28:41

America in Space - The First Decade

28:33

The Eagle Has Landed, The Flight of Apollo 11, 1969