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Earth

Your home. Our mission.

Earth Action

NASA is an exploration agency, and one of our missions is to know our home. We develop novel tools and techniques for understanding how our planet works -- for the benefit of humanity and for insights we need to explore other moons and planets. NASA's Earth Science Division operates more than 20 satellites in orbit, sponsors hundreds of research programs and studies, and funds opportunities to put data to use for societal needs. We develop new ways to observe the oceans, land cover, ice, atmosphere, and life, and we measure how changes in one drive changes in others over the short and long term. While listening to and collaborating with industry leaders, international partners, academic institutions, and other users of our data, we drive innovations and deliver science to help inform decisions that benefit the nation and the world.

Earth Observatory Image of the Day

Winter Grips the Michigan Mitten
3 min read

A blanket of snow spanned Michigan and much of the Great Lakes region following a potent cold snap.

Jan 23, 2026
Snow Buries Kamchatka
2 min read

December and January brought a series of intense winter storms to the peninsula in far eastern Russia.

Jan 22, 2026
Fires Erupt in South-Central Chile 
2 min read

Tens of thousands of people fled to safety as blazes spread throughout the country’s Biobío and Ñuble regions.

Jan 21, 2026

NISAR

Carrying an advanced radar system that will produce a dynamic, three-dimensional view of Earth in unprecedented detail, the NISAR (NASA-ISRO Synthetic Aperture Radar) satellite was launched from India on July 30, 2025. Jointly developed by NASA and the Indian Space Research Organisation (ISRO), the satellite can detect the movement of land and ice surfaces down to the centimeter. The mission will help protect communities by providing unique, actionable information to decision-makers in a diverse range of areas, including disaster response, infrastructure monitoring, and agricultural management. 

Sensing the Seas

For more than forty years, NASA has found unique ways to study the surface layers of the ocean from the tropics to the poles. With three new missions since 2020 – PACE, SWOT, and Sentinel 6-Michael Freilich – we are now ushering in a new era of ocean studies.

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