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Cosmic rays

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.

Three images of two-lobed Arrokoth in varying clarity and color.
Posted inNews

A Sugar Coating for Arrokoth

by Jonathan O’Callaghan 10 July 202410 July 2024

A Kuiper Belt object might contain ribose and glucose on its surface—the same elements that could have seeded life on Earth.

A bright point of light surrounded by rings, rendered in red
Posted inNews

Did a Cosmic Explosion Make the Ionosphere Dance?

by Matthew R. Francis 8 January 20248 January 2024

Researchers have linked a 2022 gamma ray burst to a disturbance in the upper atmosphere, but proving the connection highlights the problems with this kind of measurement.

Rita de Cássia dos Anjos holds an award recognizing women in science.
Posted inFeatures

Rita de Cássia dos Anjos: Never Settle for Things as They Are

by Meghie Rodrigues 25 July 202225 July 2022

The award-winning astrophysicist is using her visibility to call attention to inequalities in the Brazilian science community.

Simulation results showing the effective dose in mSv/year as a function of depth beneath the Martian surface.
Posted inEditors' Highlights

Life on Mars? Estimating Radiation Risks for Martian Astronauts

by Andrew Poppe 19 April 202221 December 2022

New research suggests that to minimize radiation risk for human exploration of Mars, astronauts will need to dig deep for safety.

Photograph and muographic image of Satsuma-Iwo-jima volcanic island, Japan
Posted inEditors' Vox

High-Definition Imaging of the Subsurface with Cosmic Ray Muons

by László Oláh, Hiroyuki K. M. Tanaka and Dezső Varga 14 February 20223 January 2023

A new book describes muography, an imaging technique that can be used to visualize the internal density composition of geological structures.

Artist’s depiction of Earth in a shower of cosmic rays coming from a background Sun.
Posted inNews

Taking Stock of Cosmic Rays in the Solar System

by Jure Japelj 5 May 202125 October 2021

Scientists seek to understand the elusive properties of stellar and galactic cosmic rays before searching for life on exoplanets.

Sakurajima volcano emits a cloud of ash
Posted inNews

Are Cosmic Rays a Key to Forecasting Volcanic Eruptions?

Mara Johnson-Groh, Science Writer by Mara Johnson-Groh 21 April 20203 January 2023

A combination of relativistic particles and artificial intelligence may provide a new way to forecast when a volcano could erupt.

A large piece of technology is deployed into the ocean from a ship.
Posted inNews

An Underwater Telescope to Study Sky and Sea

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 25 June 201917 January 2023

To peer into the farthest reaches of the universe, you must first build a giant underwater telescope.

Researchers use a new technique to better understand alpine snowpacks and track average snow depth and water content
Posted inResearch Spotlights

Cosmic Ray Neutrons Reveal Mountain Snowpacks

by Terri Cook 29 September 201713 March 2023

The first application of aboveground neutron sensing to evaluate alpine snowpacks indicates that this method can reliably detect average snow depth and water content across intermediate distances.

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Features from AGU Publications

Research Spotlights

Deforestation Is Reducing Rainfall in the Amazon

19 May 202519 May 2025
Editors' Highlights

Bringing Storms into Focus

19 May 202515 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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