• 8 Videos, Slides, Films

• 2 Galaxies
• 2 Physics
• 2 Space telescopes
• 1 Comets
• 1 Discoveries in science
• 1 Einstein, Albert, 1879-1955
• 1 Expanding universe
• 1 History
• 1 Meteors
• 1 Quantum theory
• 1 Satellites
• 1 Solar system
• 1 Stars

• 8 Films Media Group
• 5 Public Broadcasting Service (U.S.)

• 8 English

• 2 Solar system
• 1 Outer space

• 8 Educational films
• 8 Internet videos
• 7 Videorecording
• 2 Video recordings for the hearing impaired
• 1 Video recording

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