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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

Why Maine’s Sandy Shorelines Turn Jagged
4 min read

Differences in the underlying bedrock and how rivers distribute sediment make the coastlines west of Portland look unlike those northeast…

Jul 21, 2026
Shaping the Emerald City
4 min read

The hills and basins of Seattle, Washington, have been sculpted by glaciers and modified by humans.

Jul 20, 2026
A Tide-Fueled Trove of Biodiversity in Guinea-Bissau
3 min read

The expansive mudflats, sandy beaches, and mangrove forests of the Bijagós archipelago support an array of migratory shorebirds and large…

Jul 17, 2026

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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