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geophysics

A silver-colored spacecraft orbits above a red-colored planet with craters visible on its surface.
Posted inNews

Scientists Spot Sputtering on Mars

Katherine Kornei, Science Writer by Katherine Kornei 24 June 202524 June 2025

Nearly a decade’s worth of data went into the first direct observation of sputtering on Mars, which researchers believe contributed to the loss of the Red Planet’s atmosphere.

A network of antenna sticks up from a snowy landscape and connected by mesh wires stretch far off into the distance. Snowy mountains are on the horizon.
Posted inResearch Spotlights

Nudging Earth’s Ionosphere Helps Us Learn More About It

Sarah Stanley, Science Writer by Sarah Stanley 17 June 202517 June 2025

New observations and simulations capture the physics at play across each of the three main ionospheric regions.

Four seemingly identical, octagonal, disklike structures, each with several various thin antennas extending outward at various angles, appear to be floating in a closely spaced cluster in space. In the background, on the right side of the image, is the round shape of the planet Earth, encircled by translucent, overlapping blue and purple lines.
Posted inResearch Spotlights

New Insights into an Enigmatic Form of Magnetic Reconnection

Sarah Stanley, Science Writer by Sarah Stanley 11 April 202511 April 2025

A new study deepens understanding of magnetic field behavior recently discovered by NASA in Earth’s magnetosphere.

Illustration of a cross section of Earth with magnetic field lines.
Posted inEditors' Vox

An Earth System Science Approach to Geophysics

by Steven R. Dickman 1 April 202528 March 2025

With an underlying universal theme of convection, a new textbook introduces upper-level geology, geophysics, physics, and engineering students to the geophysics behind the Earth System.

Close up view of the surface of dark-colored rock containing several large pale green crystals. The tip of a pen appears beside the rock for scale.
Posted inScience Updates

The Deep Frontier of Mantle Magma Supply

by Ben Black, Samer Naif, Forrest Horton, Andrea Goltz and Cian Wilson 25 March 202525 March 2025

Compared with crustal magma systems, little is known about the deep sources of volcanic supply chains. Interdisciplinary efforts can help answer key questions about how magma migrates from the mantle.

Eighteen photos in a grid. Each features a background of green light reminiscent of the northern lights, with clusters of red dots in the middle.
Posted inResearch Spotlights

Radar Reveals Electrical Activity in the Ionosphere

by Saima May Sidik 18 December 202416 July 2025

A new method could improve understanding of communication disruptions.

A rainbow-hued image of the Moon; different colors correspond to different elevations. The surface is covered in circle-shaped craters.
Posted inNews

Meteorite Sheds Light on the Moon’s Impact History

Katherine Kornei, Science Writer by Katherine Kornei 6 December 20246 December 2024

Analysis has revealed the South Pole–Aitken basin is significantly older than other impact basins on the Moon, a finding that has implications for the evolution of the early solar system.

Three Major League Baseball baseballs arranged in a row angling away from the camera. The baseball in the foreground is in focus; the others blur into the background.
Posted inNews

Geoscientists Demystify Baseball’s Magic Mud

by Elise Cutts 5 December 20245 December 2024

Taking baseball’s mysterious Rubbing Mud into the lab revealed no magic ingredients—but plenty of useful natural properties from geomaterials.

The dusty, dark gray surface of the Moon, with bootprints around a light-colored apparatus. The dark reflective face of the apparatus is angled slightly upward.
Posted inNews

The Relatively Messy Problem with Lunar Clocks

by Matthew R. Francis 14 November 202414 November 2024

Using Einstein’s theory of general relativity, physicists found that clocks on the Moon would run 56 microseconds faster than clocks on Earth. That finding will help future lunar missions navigate.

First quarter Moon. Long shadows are visible near the boundary between day and night.
Posted inNews

The Origin of the Moon’s Thin Atmosphere Might Be Tiny Impacts

by Jonathan O’Callaghan 17 September 202417 September 2024

Minuscule meteoroids slamming into the lunar surface could be kicking up most of the atoms that make up the lunar exosphere.

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Features from AGU Publications

Research Spotlights

Temperatures Are Rising, but What About Humidity?

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Editors' Highlights

Successful Liquid Lake Conditions in a Cold Martian Paleoclimate

8 January 20268 January 2026
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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