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Our Glaciers: Then and Now activity kit helps you see the changes taking place in glaciers around the world. See all our activity kits and classroom activities.

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Cool It! Game

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Cassini

A spacecraft named Cassini will study the planet Saturn for several years. Cassini blasted off from Earth in October 1997. After flying past Venus, Earth, and Jupiter, Cassini finally arrived at Saturn...more

MESSENGER

The MErcury Surface Space ENvironment, GEochemistry Ranging mission (MESSENGER) was chosen as the next mission to Mercury. The Mariner 10 spacecraft last visited Mercury in 1975. Since then, scientists...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF