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spectroscopy

Gerald Wasserburg in front of the Lunatic I mass spectrometer with the Allende meteorite and a lunar rock on the table beside him
Posted inNews

Gerald J. Wasserburg (1927–2016)

by S. B. Jacobsen, D. A. Papanastassiou and D. J. DePaolo 3 May 201727 January 2022

A leading geochemist who became well known for creating the first high-precision mass spectrometer, called Lunatic I, that measured isotope ratios in lunar samples from the Apollo missions.

Posted inNews

Surveying Alaskan Minerals from Afar

by E. Deatrick 13 July 20167 February 2023

By using hyperspectral imaging, researchers test their ability to find copper in remote areas.

Portion of a photo taken by NASA's Curiosity rover while traversing the Kimberly formation on its journey south toward the center of Gale Crater.
Posted inResearch Spotlights

Curiosity Sends Curious Water Data from Mars

Sarah Stanley, Science Writer by Sarah Stanley 8 June 201624 April 2024

The rover's neutron spectroscopy instrument hints at an unexpected trend: The upper soil levels in the layers of Gale Crater's Kimberley formation seem to hold more water-associated hydrogen.

Posted inResearch Spotlights

Demystifying Mercury "Hollows"

by Terri Cook 11 March 201628 July 2022

Spectral data from NASA's MESSENGER spacecraft indicate that the properties of the depressions on Mercury's surface can vary within a single crater and that these differences may correlate to age.

Posted inNews

Charles A. Barth, 1930–2014

by D. N. Baker and T. N. Woods 29 September 201523 January 2023

Long-time director of the Laboratory for Atmospheric and Space Physics conducted pioneering studies of the atmospheres of Earth and other planets using ultraviolet spectroscopy.

Posted inResearch Spotlights

How Powerful Is Jupiter's Aurora?

by Mark Zastrow 8 September 201511 August 2022

Scientists have mapped Jupiter's spectacular aurora in unprecedented detail with the Hubble Space Telescope.

Posted inResearch Spotlights

Airborne Sensor Can Track Photosynthesis Efficiency

by C. Palmer 7 August 201531 March 2023

Remote estimation of fluorescence emitted by plants can indicate variations in photosynthesis performance.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Briny “Death Pools” Hold Clues to Early Life

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Seasonality is Changing for Extreme Dry and Humid Heat Events 

18 September 202617 September 2026
Editors' Vox

In Appreciation of AGU’s Outstanding Reviewers of 2025

14 September 202610 September 2026
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