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| Apollo
President Kennedy's bold challenge set the nation on a journey unlike any before in human history--a journey to land on the moon.
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| Aqua
Aqua, Latin for water, is a NASA Earth Science satellite mission named for the large amount of information that the mission will be collecting about the Earth's water cycle.
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| Aura Mission
A mission dedicated to the health of Earth's atmosphere.
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| CALIPSO
CALIPSO will provide the next generation of climate observations, drastically improving our ability to predict climate change and to study the air we breathe.
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| CloudSat
CloudSat's cloud-profiling radar is 1,000 times more sensitive than typical weather radar and can detect clouds and distinguish between cloud particles and precipitation.
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| Cluster ESA/NASA Mission
The four Cluster spacecraft carry out 3D measurements in the Earth's Magnetosphere.
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| Earth Observing-1
As the first New Millennium Program Earth Observing Mission, EO-1 has validated advanced land imaging and unique spacecraft technologies.
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| Earth Probe Total Ozone Mapping Spectrometer (EP-TOMS)
Earth Probe Total Ozone Mapping Spectrometer (EP-TOMS), along with the Ozone Monitoring Instrument onboard AURA, are currently the only NASA spacecraft on orbit specializing in ozone retrieval.
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| Explorer
America's first artificial satellite.
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| Fast Auroral Snapshot Explorer (FAST)
FAST, the second mission in NASA's Small Explorer Satellite Program (SMEX), is a satellite designed to study Earth's aurora.
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| Gemini
Bridge to the moon.
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| Geostationary Operational Environmental Satellites (GOES)
GOES-N is the latest in a series of satellites that provide a constant vigil for the atmospheric "triggers" for severe weather conditions such as tornadoes, flash floods, hail storms, and hurricanes.
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| Geotail Mission
A mission to study the tail of Earth's magnetosphere.
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| Gravity Recovery and Climate Experiment
The twin satellites are making detailed measurements of Earth's gravity field to learn more about gravity and Earth's natural systems.
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| Imager for Magnetopause-to-Aurora Global Exploration (IMAGE)
IMAGE is a mission to study the global response of the magnetosphere to the changes in solar wind.
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| Ice Cloud and Land Elevation Satellite (ICEsat) Mission
The ICESat mission will provide multi-year elevation data regarding ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas.
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| Jason
Jason-1 is the first follow-on to the highly successful TOPEX/Poseidon mission that measured ocean surface topography.
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| Mercury
America's First Space Program.
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| NOAA-M Environmental Satellite
A new environmental satellite that will improve weather forecasting and monitor environmental events around the world.
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| Polar Mission
The Polar Mission is to obtain data from both high- and low-altitude perspectives of the polar region of geospace.
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| Skylab
America's first space station and orbital science and engineering laboratory.
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| Solar Anomalous and Magnetospheric Particle Explorer (SAMPEX) Mission
SAMPEX studies the energy, composition and charge states of particles from supernova explosions in the distant reaches of the galaxy, from the heart of solar flares and from the depths of nearby interstellar space.
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| Space Technology 5
The Space Technology 5 (ST5) Project is building and testing micro-satellites to test and validate new technologies for future science missions.
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| Terra
Terra is a multi-national, multi-disciplinary partnership between the U.S., Canada and Japan that is an important part of helping us better understand and protect our home planet.
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| Thermospere Ionosphere Mesosphere Energetics and Dynamics Mission (TIMED)
The TIMED mission is studying the influences of the Sun and humans on the least explored region of Earth's atmosphere.
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| Topex Mission
The Topex mission will collect information with which scientists can relate changes in ocean currents to atmospheric and climate patterns.
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| Tropical Rainfall Measuring Mission (TRMM)
TRMM is a joint mission between NASA and the Japan Aerospace Exploration Agency designed to monitor and study tropical rainfall.
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| Upper Atmosphere Research Satellite (UARS)
The Upper Atmosphere Research Satellite (UARS) was launched in 1991 by the Space Shuttle Discovery and orbits at an altitude of 375 miles. Designed to operate for three years, six of its ten instruments continue to function, measuring ozone and chemical compounds found in the ozone layer.
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| Wind Mission
A mission to investigate the solar wind and its impact on the near-Earth environment.
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