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Words begining with "J"

Japanese National Space Development Agency (NASDA)

The agency reports to the Japanese Ministry of Science and Technoloqy.

JPL (Jet Propulsion Laboratory)

See NASA Centers.

Jet Stream

Rivers of high-speed air in the atmosphere. Jet streams form along the boundaries of global air masses where there is a significant difference in atmospheric temperature. The jet streams may be several hundred miles across and 1 - 2 miles deep at an altitude of 8 - 12 miles. They generally move west to east, and are strongest in the winter with core wind speeds as high as 250 mph. Changes in the jet stream indicate changes in the motion of the atmosphere and weather.

Joint Education Initiative (JEI)

The JEI project was developed by USGS, NOAA, NASA, industry, and teachers to enable teachers and students to explore the massive quantities of Earth science data published by the U.S. Government on CD-ROM. JEI encourages a research and analysis approach to science education.

JSC (Johnson Space Center)

See NASA Centers.


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Editor: Tom Benson
NASA Official: Tom Benson
Last Updated: Jun 12 2014

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