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 On December 18. 1999. NASA launched the EOS "flagship" EOS Terra from 

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 Vandenberg Air Force Base. California. Riding atop a Lockheed Martin Atlas IIAS 

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 rocket. Terra began its mission to collect a 15-year global data set to base future 

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 scientific investigations about our complex home planet. 

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 Together with the entire fleet of EOS spacecraft. Terra is helping scientists unravel 

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 the mysteries of climate and environmental change. 

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 Terra is part of the AM "Morning" Constellation an international constellation 

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 devoted to Earth observation. 

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 Roughly the size of a small school bus. the EOS Terra spacecraft carries a payload 

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 of five state-of-the-art sensors that study the interactions among the Earth's 

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 atmosphere. lands. oceans. and radiant energy heat and light. 

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 In service for more than a dozen years now. Terra continues to capture spectacular 

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 images of natural. and human-made. events that impact our world. 

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