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everything atmospheric

The dark blue orb of Neptune is viewed by Voyager 2 at an upward angle from the south pole. A dark navy storm spot, the Great Dark Spot, is just to the right of the center of the planet, and white high-altitude clouds are scattered around the planet.
Posted inNews

Diagnosing Neptune’s Chilly Summer

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 28 April 202228 April 2022

A pandemic project analyzing a trove of infrared images revealed an unexplained phenomenon taking place in Neptune’s atmosphere.

Satellite images show the collapse of the Conger ice shelf.
Posted inNews

A New Clue to Antarctic Ice Shelf Collapse

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 22 April 202230 January 2024

A particular kind of storm coincided with 13 of the 21 recent calving events in Antarctica.

The explosive eruption of Hunga Tonga–Hunga Ha’apai in the South Pacific
Posted inResearch Spotlights

Tonga Eruption Made Waves in Earth’s Ionosphere

by Jack Lee 21 April 202230 November 2022

The blast from Hunga Tonga–Hunga Ha’apai produced far-reaching ionospheric disturbances, including one with an initial speed up to 950 meters per second.

Posted inEditors' Highlights

Less Air Travel May Partially Contribute to Global Warming

by Tong Zhu 14 April 20221 June 2023

Decrease in aircraft soot emission, as shown by COVID-19 lockdown, leads to a significant increase in ice crystal number in cirrus clouds, and results in a small global positive radiative effect.

Lightning over water
Posted inResearch Spotlights

Lightning Had Difficulty Forming in Early Earth’s Atmosphere

by Rebecca Dzombak 8 April 202225 April 2022

Lightning could have sparked the beginnings of life, but the primordial atmosphere might have made it more difficult for lightning to initiate.

Two figures from the paper, showing the orbit path of Ice in the Mesosphere and graph showing the agreement of the daily PMC occurrence rates of the simultaneous observations from Himawari-8/AHI and AIM/Cloud Imaging and Particle Size data..
Posted inEditors' Highlights

New Technique Improves Polar Mesospheric Cloud Data Set

by Astrid Maute 7 April 202213 March 2023

A new two-step Polar Mesospheric Cloud detection technique is applied towards the Himawari-8/Advanced Himawari Imager full-disk images leading to a new high-quality dataset.

Rain clouds hang over a valley in Uttarakhand, India.
Posted inNews

Higher Sea Surface Temperatures Could Lead to a Weaker Monsoon

by T. V. Padma 6 April 202226 October 2022

Most climate models predict that the South Asian monsoon will strengthen with climate change, but new research indicates warmer ocean temperatures may lead to a drier phenomenon.

Weather instrumentation mounted on stands and towers in a grassy field.
Posted inScience Updates

Chronicling the Hottest, Coldest, Windiest, and Rainiest Weather

by Alex Sterin, Phillip Jones, Blair Trewin, Daniel Krahenbuhl and Randall S. Cerveny 5 April 20229 May 2022

The World Meteorological Organization verifies and documents record-setting temperatures, winds, lightning, and more, offering snapshots of Earth’s extremes and hints about its changing climate.

A photograph from a commercial flight showing a pyrocumulonimbus cloud forming over the 2019–2020 Australian bushfires.
Posted inNews

Australian Wildfires Linked to Ozone Layer Depletion

by Krystal Vasquez 4 April 20223 June 2024

New research shows that the Black Summer bushfires damaged the ozone layer, eliminating a decade’s worth of progress.

An aerial image of the windswept surface of Mars. The ground is rusty red with blacker sediment curling across the image in the form of dunes. A dusting of white snow accentuates the ridges of large and small scale dunes.
Posted inNews

Mars’s Dust Cycle Controls Its Polar Vortex and Snowfall

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 1 April 20221 April 2022

On Earth, the water cycle is a dominant climate force. On Mars, it’s the dust.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Watershed Sustainability Project Centers Place-Based Research

4 December 20254 December 2025
Editors' Highlights

Changes in Slab Dip Cause Rapid Changes in Plate Motion

4 December 20252 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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