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sand

Schematic representation of the model presented in this study.
Posted inEditors' Highlights

What Electrons Can Tell Us About the Speed of Sand

by Harrison Gray 13 February 202328 March 2023

A new sediment tracer uses the interactions between radiation, charge, and the Sun to uncover the hidden transport histories of sand grains.

Riverbed construction
Posted inFeatures

Grains of Sand: Too Much and Never Enough

by Alka Tripathy-Lang 25 January 202317 February 2023

Sand is a foundational element of our cities, our homes, our landscapes and seascapes. How we will interact with the material in the future, however, is less certain.

Close-up of green olivine sand grains
Posted inNews

Can These Rocks Help Rein in Climate Change?

Tim Hornyak, Science Writer by Tim Hornyak 27 September 20221 June 2023

Spreading olivine on beaches could accelerate ocean uptake of carbon dioxide and potentially limit climate change. The concept and execution still face some scrutiny from scientists.

Vashan Wright smiles at the camera, giving a double thumbs up.
Posted inFeatures

Vashan Wright: A Champion for DEI in the Geosciences

by Santiago Flórez 25 July 202216 August 2022

While studying tectonic plates and sand, Wright works on a program to make the geosciences more equitable.

Two satellite photos of the Lut Desert with arrows depicting wind-driven transport routes of sediment.
Posted inEditors' Highlights

A Unique Glimpse at Sediment Erosion and Deposition by Wind

by Valeriy Ivanov 21 July 202221 July 2022

The Lut Desert in Iran is an exceptional natural laboratory to study how wind moves sediment across the landscape. A new study quantifies erosional and depositional sediment fluxes of the desert.

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 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

Jenessa Duncombe, Staff Writer 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

Nola Taylor Redd, Science Writer 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.

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