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unsolved mysteries

Cool winds flow over Tsanteleina Glacier in Italy.
Posted inNews

Glaciers Are Warming More Slowly Than Expected, but Not for Long

by Kaja Šeruga 20 November 202520 November 2025

An unprecedented dataset offers insight into the counterintuitive cooling effect of glaciers on a global scale.

The planet Venus appears as a circular shape against a black background, with the right side sharply defined but the far left side fading into shadow. White, gray, and light orange swirling shapes cover the surface, appearing whiter, more linear, and more solid at the top and bottom of the circle but patchier toward the middle, with more patches of gray and light orange.
Posted inResearch Spotlights

Key Driver of Extreme Winds on Venus Identified

Sarah Stanley, Science Writer by Sarah Stanley 19 November 202519 November 2025

A new study suggests that a once-daily atmospheric tidal cycle may be a bigger driver of rapid Venusian winds than previously thought.

Five expedition team members climb an icy surface.
Posted inNews

Pamir Glacier Expedition Returns with High-Elevation Ice Cores

by Grace van Deelen 17 November 202517 November 2025

The three glacial cores will unlock mysteries about past climate and weather patterns in central Asia.

A series of structures that look like electrical poles extend into the distance on an icy surface. The sky above is full of stars and streaked with green aurorae.
Posted inNews

A Weak Spot in Earth’s Magnetic Field Is Going from Bad to Worse

by Tom Metcalfe 10 November 202510 November 2025

This could be bad news for satellites and spacefarers.

Aerial photo of clouds dusting a mountainous landscape.
Posted inNews

New Satellite Data Reveal a Shift in Earth’s Once-Balanced Energy System

by Larissa G. Capella 23 October 202523 October 2025

The Northern Hemisphere is absorbing more sunlight than the Southern Hemisphere, and clouds can no longer keep the balance.

Close-up image of niobium crystals
Posted inNews

To Find Critical Minerals, Look to Plate Tectonics

by Hannah Richter 21 October 202521 October 2025

A study of “weird” Australian rocks suggests stores of niobium rose to the surface during the breakup of the supercontinent Rodinia.

Illustration of plumes erupting from the surface of Enceladus
Posted inNews

Space Radiation Can Produce Some Organic Molecules Detected on Icy Moons

Javier Barbuzano, Science Writer by Javier Barbuzano 14 October 202514 October 2025

As missions prepare to visit ocean worlds like Enceladus and Europa, new findings show scientists must first learn to distinguish between radiation-made organics and those born in a subsurface sea.

Cutaway diagram of seismographic waves passing through the interior of Mars, with a metal core at center
Posted inNews

Scientists May Have Finally Detected a Solid Inner Core on Mars

Javier Barbuzano, Science Writer by Javier Barbuzano 1 October 20251 October 2025

Seismic clues from NASA’s InSight mission suggest that Mars hides a solid inner core, and raise new questions about why the planet’s magnetic field disappeared.

An illustration of a triceratops
Posted inNews

Move Over, Beavers. Dinosaurs Might Also Have Been Nature’s Engineers

by Grace van Deelen 25 September 202525 September 2025

Late Cretaceous dinosaurs may have cut back vegetation, creating large floodplains. When the asteroid hit, those floodplains became forests, a new study argues.

A comet with a compact coma and a short tail in front of a background of stars.
Posted inFeatures

How an Interstellar Interloper Spurred Astronomers into Action

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 9 September 202513 November 2025

Valuable lessons from previous interstellar objects allowed scientists to develop a more rapid response when the third one arrived in July.

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Features from AGU Publications

Research Spotlights

Key Driver of Extreme Winds on Venus Identified

19 November 202519 November 2025
Editors' Highlights

From Mantle Flow to River Flow: Shaping Earth’s Surface from Within

20 November 202519 November 2025
Editors' Vox

Echoes From the Past: How Land Reclamation Slowly Modifies Coastal Environments

19 November 202519 November 2025
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