Space Exploration

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    Literature Guide

    Astro Boy Teacher's Guide

    This teacher's guide for Astro Boy—the novel by Tracey West based on the an... read more


    20th-Century Explorers Word Power

    Students can practice social studies vocabulary relevant to 20th-century ex... read more


    Instant Expert: Astronomy

    Become an instant expert on astronomy. Find motivational mini-lessons and t... read more

    Slideshow Gallery

    Learning About Telescopes

    Explore the concept of magnification and telescopic innovations with your s... read more


    Sedna Debuts, Rattling Poor Pluto

    Learn about the discovery of Sedna – the most distant object ever iden... read more