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A worker maintains a Tropical Atmosphere Ocean (TAO) buoy on the equatorial El Niño array in the Pacific Ocean.

Double Vision

The TOPEX and Poseidon satellites monitor ocean surface topography.
Feature Article
July 21, 2020
ASTER acquired this image of Mount St. Helens on August 8, 2000.

Domes of Destruction

Scientists study Mount Unzen in Japan to explore the use of satellite data to monitor volcanic domes.
Feature Article
July 21, 2020
This maize in Zimbabwe appears to be thriving in its early stages, but its grain yield will depend on proper timing of rains.

Distant Fields of Grain

Remote estimates of crop yields help international aid agencies decide how to act.
Feature Article
July 21, 2020
February 5, 2000. This image captures the iceberg after it split into two sections (A and B).

Disintegration of the Ninnis Glacier Tongue

Many processes that shape the Earth's landscape happen too slowly to be witnessed in a human lifetime. But recent analysis of satellite imagery shows that a large glacier tongue on the coast of East Antarctica has disintegrated, changing the shape of the coastline almost overnight.
Feature Article
July 21, 2020
This Synthetic Aperture Radar (SAR) interferogram includes the epicenters of the October 23, 2002, and November 3, 2002 Denali Fault earthquakes, which are located at the extreme western end of the fault rupture.

Denali's Fault

Alaska's Denali Fault experienced a magnitude 7.9 earthquake in 2002.
Feature Article
July 21, 2020
The image above shows an ERS-2 SAR image of coastal water off the Pacific coast of Mexico in 1996.

Data Made Easy

Software development is essential for making SAR datasets user friendly.
Feature Article
July 21, 2020
The image above shows a brown haze over Boulder, Colorado.

Critical Chemistry

Data on reactive nitrogen species helps map out global distribution and concentration.
Feature Article
July 21, 2020
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