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unsolved mysteries

Posted inFeatures

The Search for the Severed Head of the Himalayas

Lucas Joel by L. Joel 25 April 20198 August 2023

To unearth the very first sediments to erode from the Himalayas, a team of scientists drilled beneath the Bay of Bengal.

Posted inEditors' Highlights

Extraordinary Polar Wander During the Late Jurassic?

by Mark J. Dekkers 22 April 201927 January 2023

Small amounts of polar wander have occurred during geological history, but whether larger amounts occurred is still controversial. Did a truly large polar wander event really happen?

A large “dent” in Earth’s geoid in the Indian Ocean indicates that less mass is concentrated here than is typical.
Posted inScience Updates

Seismologists Search for the Indian Ocean’s “Missing Mass”

by L. S. Ningthoujam, S. S. Negi and D. K. Pandey 18 April 201928 October 2021

An Indian scientific team set out to sea last year to find clues to the source of an unusually weak gravitational potential in the middle of the Indian Ocean.

A flooded neighborhood in San Diego, California.
Posted inResearch Spotlights

If Precipitation Extremes Are Increasing, Why Aren’t Floods?

by Terri Cook 17 April 201915 February 2023

Improving our understanding of the relationship between changes in precipitation and flooding due to rising temperature is a new grand challenge for the scientific community, argue the authors of a recent commentary.

A tornado touches down near Elie, Manitoba, Canada, in June 2007
Posted inNews

Before Canadian Scientists Can Study Tornadoes, They Have to Find Them

by R. Kaufman 22 March 201925 July 2022

A yearlong project aims to find more than 150 “missing” tornadoes thought to hit Canada each year.

Seismic tomography imaging shows a portion of a “blob” that sits at the base of the mantle below Africa.
Posted inFeatures

The Unsolved Mystery of the Earth Blobs

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 February 201927 January 2023

Researchers peering into Earth’s interior found two continent-sized structures that upend our picture of the mantle. What could their existence mean for us back on Earth’s surface?

The view near McMurdo Station, Antarctica
Posted inResearch Spotlights

Observations Show Gravity Waves Above Antarctica Dance in Winter

by Terri Cook 5 February 20198 March 2022

Year-round observations show gravity waves above Antarctica exhibit seasonal patterns that peak in winter, which could help researchers trace the source of this mysterious phenomenon.

Stalagmites in a cave in Budapest, Hungary
Posted inENGAGE, News

The Akkadian Empire—Felled by Dust?

Katherine Kornei, Science Writer by Katherine Kornei 31 January 201930 March 2023

Chemical measurements of a stalagmite from a cave in Iran reveal a large uptick in dust activity in northern Mesopotamia roughly 4,200 years ago, coincident with the decline of the Akkadian Empire.

Posted inEditors' Vox

Peering into Pores: What Happens When Water Meets Soil?

by C. Zhang and N. Lu 28 January 20193 December 2021

New research sheds light on the long-standing puzzle of how and why soil water density differs from free water density.

Slope streaks on Mars
Posted inEditors' Vox

Revisiting Enigmatic Martian Slope Streaks

by A. Bhardwaj, L. Sam, F. J. Martín‐Torres and M-P. Zorzano 15 January 201921 June 2023

Slope streaks of different sizes and shapes are a common feature on the surface of Mars, but scientists disagree about the mechanisms for their formation and development.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Students Enable Widespread Water Monitoring in India

20 July 202620 July 2026
Editors' Highlights

Southeast Tibet Grew in Pulses, Not All at Once

21 July 202621 July 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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