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How Do Solar Panels Work?
Learning the science behind solar energy.
Alexander Fleming
Recounts the life story of Alexander Fleming, his study of medicine and bacteriology, and his discovery of penicillin.
Earth
A description of Earth, the third planet from the sun, which includes information on its origins, composition, and unique characteristics.
The Sun
A description of the sun, the star of our solar system, which includes information on its origin, physical composition, and characteristics, as well as on studies made of the sun by instruments and satellites.
Mercury
Describes the planet closest to the sun, examining its size and composition, its surface features, its orbit, and efforts to learn more about this planet.
Venus
Describes some of the various features of the planet Venus and how we have learned what we know.
Science Fiction: Vision of Tomorrow?
Compares what writers over the centuries have written about an imaginary future with the reality revealed by time.
Solar Power
Explains how solar energy is generated and used, discusses solar panels and solar power towers, and considers the use of solar energy as a renewable resource.
A Stargazer's Guide
Provides tips on how to spot some of the wonders of the solar system and galaxy, with emphasis on viewing from the northern hemisphere; introduces different types of telescopes; and discusses astronomical mysteries and amazing facts.
Comets and Meteors
Explores "shooting stars" and famous comets, including Halley's Comet, Comet Hale-Bopp, and Donati's Comet.
