• 10 Videos, Slides, Films

• 5 Exploration
• 3 Astronomy
• 2 Diseases
• 2 Life support systems (Space environment)
• 2 Photographs from space
• 2 Universe
• 1 Diabetes
• 1 Ecology
• 1 Friendship 7 (Spacecraft)
• 1 Galaxies
• 1 Galilei, Galileo, 1564-1642
• 1 Grasses
• 1 Heart
• 1 History
• 1 Kennedy, John F. (John Fitzgerald), 1917-1963
• 1 Meteorites
• 1 Microorganisms
• 1 Respiratory organs
• 1 Skylab program
• 1 Space flights
• 1 Space stations
• 1 Technology
• 1 Weightlessness

• 8 World Wide Entertainment (Firm)
• 7 Farrow, Nick
• 5 Dorslar, Marianne Van
• 2 Switch International

• 10 English

• 5 Outer space

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