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unsolved mysteries

View of the Ross ice shelf from the OGS Explora, 9 February 2017.
Posted inScience Updates

Exploring the Unknown of the Ross Sea in Sea Ice–Free Conditions

by Laura De Santis, Florence Colleoni, A. Bergamasco, M. Rebesco, D. Accettella, V. Kovacevic, J. Gales, K. Sookwan and E. Olivo 11 October 201810 November 2022

A team of polar scientists aboard the OGS Explora, cruising in rare ice-free conditions, discovered new evidence of ancient and modern-day ice sheet sensitivity to climatic fluctuations.

Recently restored data suggest that astronaut disturbances to the lunar surface resulted in observed subsurface warming.
Posted inResearch Spotlights

The Case of the Missing Lunar Heat Flow Data Is Finally Solved

Sarah Stanley, Science Writer by Sarah Stanley 25 June 201810 March 2022

Decades-old data analyzed for the first time suggest that astronauts’ disturbance of the Moon surface increased solar heat intake, warming the ground below.

Posted inResearch Spotlights

Mysterious Aurora Borealis Feature Explained for the First Time

by E. Underwood 30 May 201823 January 2023

High-speed particles cause indentations in the magnetopause to form “throat auroras.”

The Carambolo Treasure
Posted inNews

Fresh Take on a Gold Treasure’s Origins Using Geochemistry

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 May 20189 February 2023

Blending geoscience and archaeology, researchers apply a new technique to pinpoint where ancient and unique gold artifacts were crafted.

Posted inEditors' Vox

Multiple Choices Exist for Changing Ocean Oxygen Concentrations

by P. Brewer 14 May 201827 January 2023

Widespread declines in ocean oxygen concentrations are now being reported with authors offering quite different explanations. Which ones are correct?

Researchers track carbon dioxide trends in the Southern Ocean to better understand one of the world’s largest carbon sinks
Posted inResearch Spotlights

Shedding Light on the Southern Ocean Carbon Sink

by S. Witman 22 February 201817 August 2022

One of the world’s largest carbon sinks is still poorly understood.

Michael DeLucia standing in front of the Great Unconformity
Posted inNews

Erasing a Billion Years of Geologic Time Across the Globe

Lucas Joel by L. Joel 5 February 201823 February 2023

The Great Unconformity—a huge time gap in the rock record—may have been triggered by the uplift of an ancient supercontinent, say researchers using a novel method for dating rocks.

Researchers review how comprehensive climate observations could improve life on Earth.
Posted inResearch Spotlights

Reckoning with Climate’s Most Challenging Questions

by S. Witman 23 January 201831 January 2022

Climate researchers outline a vision for the future of climate observations.

Posted inResearch Spotlights

Accounting for the Missing Silica in the Marine Sediment Cycle

by Terri Cook 16 January 201828 January 2022

Cosmogenic silicon-based estimates of the amount of biogenic silica stored in clays along continental margins could explain the large discrepancy in the nutrient’s global marine budget.

Utah Lake carp removal
Posted inNews

Modern Chemicals from Mystery Source Taint Fish in Utah Lake

by S. Montanari 21 December 201718 March 2022

Utah Lake’s fish contain high levels of a potential carcinogen. Could removing some bottom-feeders reduce this contamination?

Posts pagination

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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

The Ocean Circulation That Persists Even After a Key AMOC Component Fails

13 October 202613 October 2026
Editors' Highlights

Limits of Satellite Detection of Extreme Carbon Cycle Events

7 October 20267 October 2026
Editors' Vox

Where Fire Ends, Chemistry Begins

30 September 202630 September 2026
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