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NASA satellites and sensors constantly take the pulse of our planet, measuring how Earth changes by the day, season, year, and decade. Researchers and resource managers analyze those measurements and apply them on local and regional scales to better manage things like our food and water supplies, health, safety, land use, and ecosystems. NASA data is also used by other government agencies to help with responses to natural disasters and emergencies around the country and the world.
Lasering In on Corn Fields
Published March 7, 2022
An instrument designed to measure tree height can also distinguish corn from other crops.
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Assessing Lightning Risk in South Asia
Published February 11, 2022
With lightning killing hundreds of people in Bangladesh and Nepal each year, researchers think space-based observations could help reduce risks.
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Mapping Methane Emissions from Fossil Fuel Exploitation
Published January 25, 2022
Scientists track the sources of 97 million metric tons of methane emissions.
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Failed Rainy Seasons Create Food Emergency in Eastern Africa
Published January 7, 2022
More than 20 million people in Somalia, Kenya, and Ethiopia now face some of the worst food security risks in 35 years.
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Mapping Marine Microplastics
Published December 3, 2021
Researchers used satellite data to detect and track masses of plastic floating in the ocean.
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Study Traces Ammonia Pollution in Africa
Published November 17, 2021
Scientists used satellites to parse where and how agriculture is changing atmospheric concentrations of the chemical.
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An Extra Air Pollution Burden
Published November 9, 2021
New research shows that neighborhoods in Washington, D.C., with more people of color are exposed to more air pollution and have higher rates of disease.
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Falling For Corn
Published November 4, 2021
More than one third of the world’s maize (corn) crop is grown in the United States, and the largest share comes from a swath of land across the Midwest.
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Scientific Questions Arrive in Ports
Published October 27, 2021
Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air quality.
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Satellites View California Oil Spill
Published October 8, 2021
Satellite imagers can make oil spills easier to detect in open water.
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Research Shows More People Living in Floodplains
Published September 27, 2021
The proportion of the world’s population exposed to floods grew by 20 to 24 percent—ten times greater than what previous models had predicted.
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Mapping Methane Emissions in California
Published September 9, 2021
Using precision instruments and new mapping and machine-learning tools, a research team has been pinpointing sources of the greenhouse gas.