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satellites

Portion of the first image taken by the Sentinel-1B Earth-observing satellite.
Posted inNews

Rapidly Activated Satellite Completes A European Constellation

by P. L. Weiss 29 April 20166 March 2023

Sentinel-1B will move to a new orbit on the other side of our planet from its sister spacecraft Sentinel-1A.

van-allen-probes-artists-rendering
Posted inScience Updates

Radiation Belt Processes in a Declining Solar Cycle

by A. Y. Ukhorskiy, B. H. Mauk, D. G. Sibeck and R. L. Kessel 23 March 201627 March 2023

The Van Allen Probes began an extended mission in November to advance understanding of Earth's radiation belts.

Posted inResearch Spotlights

Satellite Shows Earth's Magnetic Field Bent During a Solar Storm

by Mark Zastrow 18 March 201613 April 2022

When solar storms strike, they weaken Earth's defenses against harmful radiation. New satellite measurements reveal just how much.

Posted inResearch Spotlights

New GPS Satellite Technique to Monitor Ionospheric Disturbances

by S. Kelleher 7 March 201624 January 2023

Researchers are developing better ways to use satellites to understand space weather events that can interfere with technology.

Posted inScience Updates

Students, Meet Data

by N. E. Bader, D. Soule, D. Castendyk, T. Meixner, C. O’Reilly and R. D. Gougis 2 March 201612 January 2023

Lessons that incorporate publicly available data from Earth observing sensors can expose students to the thrill of scientific discovery.

Posted inResearch Spotlights

New Weather Satellite Captures Sea Surface Temperatures

Sarah Stanley, Science Writer by Sarah Stanley 19 February 20169 February 2022

A new algorithm improves the accuracy of Pacific and Indian Ocean surface temperature measurements by the Japanese geostationary satellite Himawari-8.

Posted inResearch Spotlights

Satellites Reveal Dynamics of Suspended Mineral Particles

by Terri Cook 18 February 20165 September 2023

A case study of the Irish Sea evaluates the use of ocean color data to measure the optical properties of sedimentary particles in offshore waters.

Posted inScience Updates

Precipitation Data Key to Food Security and Public Health

by D. B. Kirschbaum and K. G. Patel 9 February 20167 November 2022

2015 Global Precipitation Measurement (GPM) Mission Applications Workshop; Hyattsville, Maryland, 9–10 June 2015

Posted inResearch Spotlights

Radar Technique Shows Magma Flow in 2014 Cape Verde Eruption

Sarah Stanley, Science Writer by Sarah Stanley 1 February 201612 December 2025

The European Space Agency's Sentinel-1 satellite captures volcanic surface changes that reveal the flow below.

Posted inResearch Spotlights

Satellites Reveal the History of the Moon's "Frigid Sea"

by Terri Cook 25 January 201628 July 2022

The history of aluminum-rich basalts in Mare Frigoris may help scientists better understand the evolution of the lunar mantle.

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Features from AGU Publications

Research Spotlights

An Ecosystem Never Forgets

19 December 202519 December 2025
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Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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