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Schematic of the mechanical design of the Heatflow and Physical Properties Package radiometer
Posted inEditors' Highlights

Insights from Calibration of the HP³ Radiometer on InSight

by Kristy Tiampo 27 July 202022 June 2022

A detailed analysis of Heatflow and Physical Properties Package Radiometer on the Mars InSight lander, including changing instrument sensitivity and calibration coefficients.

Satellite image of the Sun in X-rays and ultraviolet light
Posted inNews

Ghostly Particles from the Sun Confirm Nuclear Fusion

Katherine Kornei, Science Writer by Katherine Kornei 14 July 202012 October 2022

Using the Borexino particle detector—located deep underground in Italy—researchers spot elusive neutrinos from the Sun’s CNO cycle.

Satellite image of Soviet airport in 1979
Posted inNews

Five Things Spy Satellites Have Taught Us About Earth

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 6 July 202029 March 2023

Long before we had satellites beaming terabytes of data back to Earth, we had covert spacecraft the size of school buses snapping photos on rolls of film 50 kilometers long.

Lavender colored electrical arcs crackle around a large round instrument that glows blue.
Posted inFeatures

Remaking a Planet One Atom at a Time

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 24 June 202022 November 2021

When is a planet not a planet? Where does helium rain? How can water be solid and liquid at the same time? For answers, scientists put common planetary materials under extreme pressure and watched what happened next.

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 202030 September 2023

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.

A man backpacks up a rocky trail to an air-sampling station
Posted inNews

Radioactive Bookkeeping of Carbon Emissions

Sarah Derouin, Science Writer by Sarah Derouin 22 June 20207 March 2022

A new sampling method uses carbon-14 to single out which carbon dioxide molecules in the atmosphere derive from fossil fuels. The method could help track emissions goals for climate mitigation.

A view of Ecuador’s Cotopaxi volcano
Posted inNews

Podcast: Instruments of Unusual Size

by Lauren Lipuma 15 June 20202 May 2022

Rumbling volcanoes act like giant musical instruments that researchers can study to better monitor eruptions.

Snapshot from animation frozen on the Pangaea supercontinent in the early Mesozoic
Posted inNews

Visualizing the Deep Carbon Cycle

by C. Fogerty 12 June 20207 October 2021

Geoscientists have created animations to help visualize different components of Earth’s carbon cycle.

Argentina’s Pierre Auger Observatory at night
Posted inScience Updates

Catching Elves in Argentina

by K.-D. Merenda, R. Mussa and L. Wiencke 5 June 202012 April 2022

The world’s largest cosmic ray detector accidentally spotted elves, an unusual lightning phenomenon high in the atmosphere. Now it’s intentionally looking for more.

Close-up of one African elephant in a herd in South Africa
Posted inNews

Monitoring African Elephants with Raspberry Shake & Boom

Javier Barbuzano, Science Writer by Javier Barbuzano 28 May 20205 April 2023

A team of researchers has used low-cost devices to record footsteps and vocalizations from African elephants in the field.

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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

Drought Drove the Amazon’s 2023 Switch to a Carbon Source

25 February 202625 February 2026
Editors' Highlights

Slow and Fast Madden-Julian Oscillation Modes

25 February 202625 February 2026
Editors' Vox

A Double-Edged Sword: The Global Oxychlorine Cycle on Mars

10 February 202610 February 2026
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