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A panoramic view of rocky mounds on a rust-colored Martian landscape
Posted inNews

Does This Mineral Indicate Oxygen on Mars?

by Elise Cutts 30 January 202330 January 2023

Manganese oxides are thought to be a signature of atmospheric oxygen. But on the Red Planet, recent results suggest they might be more of a red herring.

Researcher at an observation tower in a plot where the towers will be installed
Posted inNews

Testing the Resilience of the Amazon

by Sofia Moutinho 10 November 202222 December 2022

A mega-experiment in Brazil will evaluate how tropical rain forests absorb carbon as emissions increase.

Aerial view of an agricultural field with some plots in temperature-controlled conditions
Posted inNews

Warmer Winters Keep Crops Sleepy into Spring, Hurting Yield

by Elise Cutts 21 October 202228 October 2022

Annual crops go dormant during winter. Frosty temperatures cue them to wake up—but the warmer winters brought on by climate change scramble the cold signal, hurting yield.

A back-scattered electron image of an experimental charge showing a miniaturized model of the core-mantle boundary equilibrated at pressure-temperature conditions thought to prevail during core formation.
Posted inEditors' Highlights

New Results Deepen the Mystery of Earth’s Early Magnetic Field

by Carolina Lithgow-Bertelloni 14 April 202221 December 2022

How was Earth’s early magnetic field produced? New experimental results and modeling show that the energy source could not have come from exsolution of lithophile elements from the core.

Two diamonds in the shape of a diamond anvil cell
Posted inAGU News

A Dive into the Deep Earth

by Heather Goss 24 June 202030 November 2022

In July, Eos looks at the incredible capabilities scientists have developed to recreate the enormous pressures and temperatures that exist far below the planet’s surface.

A green laser beam streams between two parts of a cylindrical instrument.
Posted inFeatures

Earth’s Core Is in the Hot Seat

by Jenessa Duncombe 24 June 202019 August 2022

How old is Earth’s inner core? High-pressure and high-temperature experiments suggest that our planet’s inner furnace may be much younger than expected.

Sepia-toned photograph of two diamonds pressing a sample between their points
Posted inFeatures

Reflecting on a Half Century of Mineral and Rock Physics at AGU

by R. C. Liebermann 24 June 202021 September 2022

Research fields focused on the physical properties of Earth materials emerged in the 20th century and have been making major contributions within geoscience ever since.

Pink brisingid sea star shuffles across the seafloor
Posted inNews

The Long-Lasting Legacy of Deep-Sea Mining

by Sarah Derouin 21 May 202030 September 2022

New research reveals a deep-sea mining experiment that took place 26 years ago still has significant and persistent impacts on benthic life.

Map showing observed trends and climatology of the sea surface temperature gradients in the global ocean over the period 1982-2018
Posted inEditors' Highlights

Ocean Gyres Observed to Move Poleward

by J. Sprintall 14 April 202024 October 2022

Basin-wide ocean gyres have been observed to be slowly migrating toward the poles and, although natural variations contribute, climate simulations suggest the shift is in response to global warming.

Illustration of galaxies
Posted inNews

Wanted for Grand Theft Galaxy: The Milky Way

by R. Crowell 12 November 201910 January 2023

Several dwarf galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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