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unsolved mysteries

Posted inNews

The Backwards Earthquakes

by E. E. A. Ross 15 December 20152 December 2022

Earthquakes in Idaho's panhandle are usually caused by the Earth's crust pulling apart. So why were earthquakes on 24 April pushing the crust together?

Posted inResearch Spotlights

Earth's Climate Cycles Might Have an Eccentric Explanation

by E. Betz 30 October 201517 August 2022

Mid-ocean ridge eruptions follow the cycles of tides and Earth's orbital eccentricity, indicating a possible role in long-term climate shifts.

Posted inResearch Spotlights

The Enigmatic Core Properties of the Inner Earth

by S. Palus 28 October 20158 July 2024

A new study explores the possibility of cubic iron alloy structure at our planet's core.

Posted inResearch Spotlights

New Clues to Mysterious Hiss in Earth's Plasmasphere

by Mark Zastrow 26 October 201527 September 2022

An analysis of the electromagnetic "hiss" that surrounds Earth reveals it's not just static; there's a signal hidden within, which may help scientists uncover its source.

Posted inNews

Astrobiology Hearing Ranges Beyond Life as We Know It

by Randy Showstack 5 October 201511 January 2022

Space research has made strides identifying where extraterrestrial life might reside but not what kind of life, if any, it could be, scientists told Congress last week.

Posted inNews

Birds Ignore Volcano Blast, Puzzle Scientists

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 23 September 201511 January 2022

When a nearby volcano unexpectedly erupted in the midst of a behavioral study of Andean condors in Argentina, the researchers scrambled to observe disruption to condors' lives. Oddly, there was none.

Posted inResearch Spotlights

What Formed These Curious Ripples on Mars?

by C. Minnehan 18 September 20156 March 2023

Dunes, ridges, or something else? Scientists seek to understand the origins of transverse aeolian ridges.

Posted inResearch Spotlights

Newly Discovered Properties of Elusive Gamma Ray Flashes

by C. Minnehan 9 July 201510 March 2023

The properties of terrestrial gamma ray flashes have eluded scientists for years. This new study sheds light on how they originate.

Posted inScience Updates

Dispelling Clouds of Uncertainty

by E. R. Lewis and J. Teixeira 15 June 20153 February 2022

How do you build a climate model that accounts for cloud physics and the transitions between cloud regimes? Use MAGIC.

Posted inResearch Spotlights

What Causes Sunspot Pairs?

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 5 May 201518 January 2023

Analysis of magnetic fields on the Sun's surface offers a new clue on why sunspots appear.

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Features from AGU Publications

Research Spotlights

Machine Learning Simulates 1,000 Years of Climate

27 August 202527 August 2025
Editors' Highlights

As Simple as Possible: The Importance of Idealized Climate Models

28 August 202526 August 2025
Editors' Vox

Waterworks on Tree Stems: The Wonders of Stemflow

21 August 202520 August 2025
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