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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.
Assessing Lightning Risk in South Asia
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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
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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
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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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Study Traces Ammonia Pollution in Africa
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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
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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
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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
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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
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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
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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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Earthquake in Haiti Triggers Landslides
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Published August 16, 2021
A break in the clouds offered satellites a view of hillslopes that slid away during the magnitude 7.2 temblor.
Sizing Up How Agriculture Connects to Deforestation
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Published August 11, 2021
Using satellite data from the past two decades, scientists are starting to pinpoint which crops and farming styles have lasting impacts on forests.
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An Upended Ecosystem in the Arabian Sea
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Published August 5, 2021
How can snow cover on the Himalayas influence the species that thrive in the ocean a thousand kilometers away?
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