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spectroscopy

An illustration of a red and orange gaseous planet in front of a yellow star
Posted inNews

First 3D Map of Exoplanet Weather Reveals Superfast Jet

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 17 March 202517 March 2025

New observations also answer a long-standing question about where this ultrahot planet keeps its titanium.

Photo of a cloud.
Posted inEditors' Highlights

Tropical Congestus Clouds Explained by Water Vapor Spectroscopy

by Bjorn Stevens 25 February 202524 February 2025

A new study demonstrates how the abundance of congestus clouds in the tropics can be explained by the water molecule’s discerning appetite for infrared radiation.

Artist’s illustration of a star with a small dark dot and a cone of translucent dust in front of it
Posted inNews

Scientists Finally Get a Good Look at a Disintegrating Exoplanet

Javier Barbuzano, Science Writer by Javier Barbuzano 28 January 202528 January 2025

The James Webb Space Telescope offers astronomers a rare glimpse into the chemical composition of a rocky planet’s interior—and the results are “very surprising.”

A thin stream of water on a dirt surface curves off to the left out of frame. Two large mountains—one a snowy peak, one not—are in the distance.
Posted inResearch Spotlights

Each Glacier Has a Unique Organic Matter Composition

by Saima May Sidik 15 October 202415 October 2024

Like snowflakes, no two glaciers are alike: Carbon-containing compounds released from glaciers vary from place to place, meaning climate and ecosystem effects of melting could vary as well.

A narrow laser beam illuminates a point on a rocky seafloor outcrop surrounded by sand.
Posted inFeatures

Sensing Remote Realms of the Deep Ocean on Earth—and Beyond

by Anastasia G. Yanchilina, Laura E. Rodriguez, Roy Price, Laura M. Barge and Pablo Sobron 29 August 202426 February 2026

A novel laser-equipped probe is collecting measurements of deep-sea geochemical environments that once seemed impossible to gather, pointing the way toward future explorations of other ocean worlds.

A blue planet appears next to a yellow star against a black background.
Posted inNews

Smells Like an Exoplanet

Katherine Kornei, Science Writer by Katherine Kornei 1 August 20245 August 2024

Hydrogen sulfide, spotted in the atmosphere of the exoplanet HD 189733 b, helps constrain how the planet formed.

Representación de Eris
Posted inNews

Los planetas enanos muestran evidencias de reciente actividad geológica

Damond Benningfield, Science Writer by Damond Benningfield 2 May 20242 May 2024

Los grandes cuerpos del Cinturón de Kuiper y más allá podrían haber albergardo océanos en la subsuperficiales.

A boat holding an instrument on a foggy lake
Posted inNews

Chemodiversity Could Indicate Freshwater Ecosystem Health

by Grace van Deelen 18 April 202418 April 2024

High-resolution mass spectrometry provides innovative analyses of dissolved organic matter.

An orange-red planet on a starry background with concentric rings of light on its right-facing horizon
Posted inNews

Rare “Glory” Possibly Seen on Exoplanet’s Horizon

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 8 April 20248 April 2024

This rainbow-like atmospheric phenomenon depends on a very specific set of circumstances. It is common on Earth and incredibly rare beyond it.

A dark orb with a bright crescent, a smaller orb in the distance, and a faint star in one corner depict Eris, its moon, and the Sun
Posted inNews

Dwarf Planets Show Evidence of Recent Geologic Activity

Damond Benningfield, Science Writer by Damond Benningfield 27 March 20242 May 2024

Large bodies in the Kuiper Belt and beyond could have hosted subsurface oceans.

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

Features from AGU Publications

Research Spotlights

Briny “Death Pools” Hold Clues to Early Life

22 September 202622 September 2026
Editors' Highlights

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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