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The coast of Santa Maria Island in the Azores
Posted inNews

How Does Sand Move? New Observations Challenge Prevailing Formulas

by Andrew Chapman 11 February 202211 February 2022

Research in the Azores finds a discrepancy between field observations of sediment transport and predictions made with commonly used mathematical formulas.

Satellite view of frosty sand dunes on Mars
Posted inScience Updates

Planetary Dunes Tell of Otherworldly Winds

by Timothy N. Titus, Serina Diniega, Lori K. Fenton, Lynn Neakrase and James Zimbelman 22 December 202116 February 2022

On Earth and throughout our solar system, ripples and dunes in sand and dust offer insights into how winds blow, liquid currents flow, and solid particles fly and bounce over the terrain.

Under a cloudy sky, numerous blue-tipped sand mining ships dot the green-blue waters of the Mekong River.
Posted inNews

Satellites Spy on Sand Mining in the Mekong

by Alka Tripathy-Lang 21 December 202110 January 2022

Concrete, used in everything from streets to skyscrapers, needs sand, often mined from active rivers in developing countries with little oversight. Researchers can now use satellites to keep watch.

An aerial image of orange sand dunes overtaking buildings.
Posted inNews

Dunes Dance to a New Rhythm in Climate Change

by Jenessa Duncombe 17 December 202117 December 2021

Dunes may morph or creep in new directions in a warming world.

Long, nearly straight lines of sand ridges on Mars
Posted inNews

Megaripples on Mars—How to Name Wind-Shaped Features on the Red Planet

by Nola Taylor Tillman 30 August 202114 April 2022

New research suggests a more settled terminology for Martian aeolian landforms based on size and geomorphology.

Researchers collect sediments from a rocky stream with a helicopter and steep rock hills in the background
Posted inScience Updates

Earth’s Continents Share an Ancient Crustal Ancestor

by J. Hollis, C. Kirkland, M. Hartnady, M. Barham and A. Steenfelt 23 August 202122 February 2022

How did today’s continents come to be? Geological sleuths found clues in grains of sand.

An image depicting bright-toned sand ripples in Proctor Crater on Mars.
Posted inResearch Spotlights

Megaripple Migration Offers Insights into Martian Atmosphere

by Rachel Fritts 31 July 20208 March 2022

The movement of large sand ripples, documented for the first time, suggests Mars is windier than we thought.

Aerial view of a massive sand-mining machine in the desert
Posted inNews

To Protect the World’s Sand, We Need to Know How to Measure It

by Rachel Fritts 8 July 20203 November 2021

New research provides a more accurate model that coastal managers and engineers can use to account for sand transport over time.

Beach on barrier island Spiekeroog in Germany
Posted inResearch Spotlights

Microbial Mechanisms Change with the Seasons

by Elizabeth Thompson 1 April 20206 December 2021

Microbes living in the sand on a barrier island alter the way they break down organic matter as their environment changes throughout the year, which has implications for the surrounding water column.

Close-up of a mussel shell near the waterline on a sandy beach
Posted inNews

Shells Sound Out Sand’s Acoustic Signatures

by Hannah Thomasy 11 November 20193 November 2021

Shell remains give sand from different locations unique acoustic signatures.

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