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spectroscopy

A portion of a cream-colored planet covered with pale swirls and partially in shadow is shown against the blackness of space broken by pinpoints of light. A hazy atmosphere is visible around the planet.
Posted inNews

These Four Exoplanets Have Wild, Rocky Weather

by Elise Cutts 7 December 20237 December 2023

On many exoplanets, conditions are so exotic that minerals form clouds and fall as rain. Recent studies revealed the rocky weather on these four exoplanets in more detail than ever before.

A black plume of smoke behind two single-family homes
Posted inNews

Some Chemicals Lingered for Weeks After Ohio Train Derailment

by Elise Cutts 23 August 202323 August 2023

Researchers drove around a van outfitted with a sensitive mass spectrometer to measure airborne chemicals weeks after the disaster.

A large plume of dark smoke rises from a forest. Orange flames are visible among the trees.
Posted inNews

As Wildfires Grow, So Could Methane Emissions

by Derek Smith 13 June 202313 June 2023

Wildfires that wreaked havoc on California in 2020 filled the atmosphere with a potent greenhouse gas.

Posted inEditors' Vox

Using Cave Formations to Investigate Ancient Wildfires

by Micheline Campbell, Liza McDonough, Pauline C. Treble and Andy Baker 2 May 20231 May 2023

From sediment cores to speleothems, environmental archives are helping us to understand the history of wildfires.

Color view of Europa from Galileo that shows the largest portion of the moon’s surface at the highest resolution.
Posted inNews

Newly Discovered Salts May Exist on Icy Moons

by Derek Smith 23 March 202311 April 2023

For the first time in more than a century, scientists have identified new sodium chloride crystals. The discovery may reconcile puzzling spectroscopic images of Europa’s surface.

Photograph of a rocky hillslope with two people sitting at the top, in the distance.
Posted inNews

UV Radiation Contributed to Earth’s Biggest Mass Extinction

Rachel Fritts, Science Writer by Rachel Fritts 10 February 202327 February 2023

To find the first direct evidence of heightened UV radiation during the end-Permian mass extinction, researchers turned to chemical evidence preserved in pollen grains.

Two young people riding aboard a boat pick through mud with their hands in search of meteorites.
Posted inNews

Community Scientists Recover Micrometeorites from Lake Michigan

Katherine Kornei, Science Writer by Katherine Kornei 15 August 202224 March 2023

A team of scientists, educators, and teenagers discovered the objects, some of which may have been delivered by a fireball that streaked across the sky in 2017.

Uranus and Neptune as seen by Voyager 2
Posted inResearch Spotlights

A Unified Atmospheric Model for Uranus and Neptune

by Morgan Rehnberg 1 August 20221 August 2022

In a new model, three substantial atmospheric layers appear consistent between the ice giants.

Artist’s rendering of the near-Earth object Kamo’oalewa
Posted inNews

Asteroid May Be a Chip off the Old Moon

by Stacy Kish 9 December 202127 March 2023

Spectral data suggest that Kamo‘oalewa, a near-Earth asteroid, has a composition similar to lunar rocks.

The LIBS instrument that is part of SuperCam
Posted inNews

Lasers Have the Makings of a 21st-Century Geoscience Tool

Richard Sima, freelance science writer by Richard J. Sima 15 October 202120 December 2021

Laser-induced breakdown spectroscopy is a versatile geochemical tool being used in a wide range of applications, from Mars rovers to earthly rock identification.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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