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dunes

A scientist stands behind a camera on a tripod in front of a short patch of wavy sand in an orange desert.
Posted inNews

Mini Dunes Form When Sand Stops Bouncing

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 11 June 20259 June 2025

Decoding how sand grains move and accumulate on Earth can also help scientists understand dune formation on Mars.

A scientist wearing a safety vest and a blue hard hat squats alongside a stream, taking notes in a notebook. The stream cuts through a glacier covered in dark gray sediment.
Posted inNews

Microbe Goo Could Help Guide the Search for Life on Mars

by Grace van Deelen 8 December 20238 December 2023

Sticky substances secreted by microbes may help create landforms on Earth. And new research shows that these substances are more preserved in iron-rich sediment. Mars is decidedly iron-rich (it’s the Red Planet, after all), so the new study adds to evidence that microbe goo could help researchers explain landform creation there. “I think this is […]

Foto de una duna de arena cubierta con plantas en la playa
Posted inNews

Las plantas construyen dunas pero pueden acelerar la erosión durante tormentas fuertes

by Carolyn Wilke 5 September 20235 September 2023

Cuando las olas golpean las dunas con vegetación, se forman áreas anegadas frente a las plantas, lo que facilita que la arena sea arrastrada por la corriente más fácilmente. Sin embargo, las plantas aún son necesarias para formar las dunas en primera instancia.

A photo of a sand dune covered with plants on a beach
Posted inNews

Plants Build Dunes but Can Speed Erosion During Severe Storms

by Carolyn Wilke 28 July 20235 September 2023

When waves hit vegetated dunes, waterlogged areas form in front of plants, making for sand that’s easier to wash away. But you still need plants to form dunes in the first place.

Roughly 20 people stand amid sand dunes under a clear blue sky and near a metal framework equipped with scientific instruments.
Posted inScience Updates

The Nitty-Gritty Forces That Shape Planetary Surfaces

by Brian Jackson, Serina Diniega, Timothy Titus, Alejandro Soto and Edgard Rivera-Valentin 15 June 202315 June 2023

Scientists are coming up with ingenious ways to compare terrestrial sand dunes, dust storms, and rain with their counterparts on Mars and Titan.

Satellite view of the Nili Patera dune field on Mars in 2014
Posted inResearch Spotlights

Mapping Martian Dunes from Orbit

by David Shultz 24 March 202028 July 2022

New research shows how fast the sands shift on the Red Planet and how useful imagery from different orbiting cameras can be in studies of Mars’s dunes.

Curiosity rover explores the Bagnold Dunes in Gale Crater, Mars
Posted inEditors' Vox

Seeing Mars in a Grain of Sand

by M. G. A. Lapotre 17 October 20183 January 2023

The second phase of Curiosity’s campaign at the Bagnold Dunes brought new observations of windblown sands during Mars’s windy season.

Horizontal exposure of cyclic cross strata in the Navajo Sandstone
Posted inScience Updates

Planetary Dune Workshop Expands to Include Subaqueous Processes

by Timothy Titus, D. M. Rubin and G. Bryant 15 February 201828 July 2022

The Fifth International Planetary Dunes Workshop: From the Bottom of the Oceans to the Outer Limits of the Solar System; St. George, Utah, 16–19 May 2017

Posted inEditors' Vox

A Rover’s Eye View of Moving Martian Dunes

by A. Deanne Rogers and Bethany Ehlmann 21 November 201724 April 2024

A new special issue of JGR: Planets presents findings on sand motion, morphology, and mineralogy from the Curiosity rover’s traverse of the active Bagnold dune field in Gale crater.

Researchers examine images taken by NASA’s Curiosity rover to see how Martian sand dunes form.
Posted inResearch Spotlights

Curiosity Spies Shifting Sands on Mars

by Mark Zastrow 29 June 201728 July 2022

Images from the rover’s pioneering encounter with sand dunes on Mars constrain wind speeds required to move sand in the thin Martian atmosphere.

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