• About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Skip to content
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
Eos

Eos

Science News by AGU

Support Eos
Sign Up for Newsletter
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos

radioactivity

A radiation warning sign in front of a wooded area
Posted inNews

Wildfires Raise Concern About Remobilized Radioactive Contamination

by Carolyn Wilke 30 January 202530 January 2025

Researchers collected soil and ash after the 2020 wildfires in the Chernobyl Exclusion Zone. Chemical tests suggested that the fires made it easier for contaminants to wash into nearby rivers.

Field photo of a mountainous region covered with long grass and shrubs.
Posted inEditors' Highlights

Elementary, My Dear: Al & Be Give Evidence of Past Climate Change

by Mikaël Attal 14 November 202412 November 2024

10Be and 26Al concentrations in river sand reveal an increase in erosion rate in the Brazilian Highlands consistent with the Mid-Pleistocene Transition, a major climatic shift that occurred about 1 million years ago.

Rocas grises bandeadas entre pasto verde y pequeñas flores blancas
Posted inNews

Sedimentos radiactivos podrían haber construido los cratones de la Tierra

Javier Barbuzano, Science Writer by Javier Barbuzano 2 August 20242 August 2024

La meteorización de los primeros continentes podría haber puesto en marcha la formación de cratones, las raíces inmutables de los continentes.

A red and white ship on an icy ocean is headed toward another ship with the same colors in the distance.
Posted inResearch Spotlights

Radioactive Isotopes Trace Hidden Arctic Currents

by Nathaniel Scharping 24 June 202424 June 2024

Tracing anthropogenic radionuclides shows researchers how water from the Atlantic flows into and mingles with Arctic currents.

Gray rocks among green grasses and flowers
Posted inNews

Radioactive Sediments May Have Built Earth’s Cratons

Javier Barbuzano, Science Writer by Javier Barbuzano 14 June 20244 August 2024

Weathering of the earliest continents could have set in motion the formation of cratons, the immutable roots of continents.

Illustration of the Earth's internal structure.
Posted inEditors' Vox

Digging Deep into Interactions Between the Core and Mantle

by Takashi Nakagawa, Taku Tsuchiya, Madhusoodhan Satish-Kumar and George Helffrich 24 July 20234 August 2023

A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.

Photo of a sample under a microscope
Posted inEditors' Vox

Rare and Revealing: Radiocarbon in Service of Paleoceanography

by Luke C. Skinner and Edouard Bard 7 February 20237 February 2023

While radiocarbon is best known as a dating tool, this rare isotope can also provide unique and wide-ranging insights into the cycling of carbon in the Earth system.

Una distintiva nube en forma de hongo producto de una prueba nuclear se alza en un cielo azul oscuro y nubes atmosféricas.
Posted inNews

Una explosión de radiocarbono del pasado

by Caroline Hasler 31 October 202222 March 2023

El fechamiento por radiocarbono es un pilar de la climatología y la arqueología. Sin embargo, esta metodología se encuentra amenazada por las emisiones de combustibles fósiles, que invalidan una señal útil proveniente de pruebas nucleares.

A distinctive mushroom cloud blossoms over the cloud line during detonation of the Ivy Mike hydrogen bomb in 1952.
Posted inNews

Radiocarbon’s Blast from the Past

by Caroline Hasler 15 September 202231 October 2022

Radiocarbon dating is a cornerstone of climate and archaeological sciences. But the method is under threat as fossil fuel emissions negate a useful signal from atomic tests.

The inside of the KamLAND antineutrino detector comprises a grid of tessellated segments, parallelograms and trapezoids, that fit together to form a sphere. Each segment of the detector, which is black, has 16 sensors, which are gold, arranged in a 4 by 4 pattern. Each segment is connected by a white border. At the center of the detector, and image, is a green circle.
Posted inResearch Spotlights

Estimating Uranium and Thorium Abundance with Geoneutrinos

by Morgan Rehnberg 31 August 202231 August 2022

Terrestrial electron antineutrino observations provide new constraints on the contributions of radiogenic heat in the mantle.

Posts pagination

1 2 3 4 Older posts
A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Storm Prediction Gets 10 Times Faster Thanks to AI

20 May 202520 May 2025
Editors' Highlights

Inferring River Discharge from Google Earth Images

20 May 202515 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
Eos logo at left; AGU logo at right

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2025 American Geophysical Union. All rights reserved Powered by Newspack