Five decades ago, NASA and the U.S. Geological Society launched a satellite to monitor Earth’s landmasses. The Apollo era had given us our first look at Earth from space and inspired scientists to ...

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 ...

Aerosol: A collection of microscopic particles, solid or liquid, suspended in a gas. They drift in Earth’s atmosphere from the stratosphere to the surface and range in size from a few nanometers—less ...

In early March 2017, we featured the top image as our monthly satellite puzzler and as an Image of the Day. But sometimes we learn even more about an image after we publish, as people write to us with ...

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This month we posed a special seasonal challenge: We asked you to join us for a remote-sensing-themed egg hunt by identifying colorful, oval-shaped lakes and ponds around the planet. Well, as one ...

On March 25, 2014, we published this nadir view of debris and a barrier lake created by a major landslide near Oso, Washington; the image was acquired by the Landsat 8 satellite on March 23. While top ...

All the members of our team are now in Kulusuk, Greenland. We’re quite isolated in this tiny village but we have a whole team behind us, making sure we get our stuff on time. The people in town are ...

Update on March 19, 2025: This Landsat image shows fields in southern Poland that have taken on ribbon-like shapes after generations of land division. Congratulations to Annie Burgess for being the ...

Update on March 19, 2025: This Landsat image shows fields in southern Poland that have taken on ribbon-like shapes after generations of land division. Congratulations to Annie Burgess for being the ...

All matter in the universe that has a temperature above absolute zero (the temperature at which all atomic or molecular motion stops) radiates energy across a range of wavelengths in the ...

Anyone who has ever planned to spend hours outside on a hot, sunny day has probably heard the advice to wear light colors. Pale colors reflect much of the Sun’s light, keeping their wearers cool. The ...