• 64 Videos, Slides, Films

• 20 Stars
• 19 Galaxies
• 6 Physics
• 4 Biology
• 4 Study and teaching
• 3 Chemistry
• 3 Collisions (Astrophysics)
• 3 End of the world (Astronomy)
• 3 Environmental sciences
• 3 History
• 3 Mechanics
• 3 Research
• 3 Space environment
• 3 Space telescopes
• 2 Biodiversity
• 2 Black holes (Astronomy)
• 2 Cosmology
• 2 Discoveries in science
• 2 Dynamics
• 2 Ecosystem management
• 2 Evolution (Biology)
• 2 Expanding universe
• 2 Geology
• 2 Methodology

• 64 Films Media Group
• 64 Films for the Humanities & Sciences (Firm)
• 7 Infobase
• 5 BBC Worldwide Ltd
• 4 Public Broadcasting Service (U.S.)
• 3 ABC International
• 3 Cambridge Educational (Firm)
• 1 4 Learning (Firm)
• 1 A&E Television Networks, LLC
• 1 Allegro Productions (Firm)
• 1 Canadian Broadcasting Corporation
• 1 Doc en Stock (Firm)
• 1 Filmoption International (Firm)
• 1 MacNeil/Lehrer Productions
• 1 Scorpion TV

• 64 English

• 19 Outer space
• 11 Solar system
• 1 Jupiter (Planet)
• 1 Mars (Planet)
• 1 United States
• 1 Venus (Planet)

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