Bright dusty halos around mass wasting on Martian Sand dunes
Post contributed by Maria Kefa (master student), Dr. Susan Conway β LPG Nantes & Dr. Lonneke Roelofs β Utrecht University Marsβ winters are sufficiently cold that carbon dioxide (COβ¦
The IAG #Planetary Gemorphology Image of the Month πΈ for August is now online! A team of researchers discusses the colourful and bright dusty halos that occur on Martian sand dunes in early spring. The halos are a good indicator of mass-wasting driven by the seasonal sublimation of CO2 ice! ππβ¨
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The image shows a circular (white) water ice deposit in a crater on Mars, which is around 12 km in diameter. The surrounding area outside of the crater is yellow in colour. In the upper left corner of the circular ice deposit a darker patch (dark grey) is visible. This patch contains dunes. In lower right half of the ice deposit layers can be recognized by faint, slightly grey lines.
The IAG #Planetary Gemorphology Image of the Month πΈ for May is now available. PhD candidate Marie Azevedo explains how the layers of different types of dusty ice deposits in Louth crater on #Mars tell us a story about the past. planetarygeomorphology.wordpress.com/2025/05/01/k...
08.05.2025 13:56 β π 2 π 0 π¬ 0 π 0
A four panel image showing black and white photos of the surface of Enceladus. The surface of Enceladus is highly fractured and hosts a lot of craters. In the images, steep slopes around the geological structures are highlighted on which darker streaks are present.
βͺThe IAG #Planetary Gemorphology Image of the Month πΈ for April is now available. Undergraduate student Kyleshaquill Fred Velez takes us to Enceladus, an icy moon of Saturn, where mass wasting occurs on the steep slopes along tectonic features.
planetarygeomorphology.wordpress.com/2025/04/01/p...
04.04.2025 09:38 β π 2 π 1 π¬ 0 π 0
This account represents the Planetary Geomorphology working group within the International Association of Geomorphologist. Our blog is a platform for planetary scientists, who study planetary surfaces, to share their research with a wider audience.
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More beautiful images of clouds can be found in the blog post! Follow us for monthly "out of this world" images and posts πͺππ©βππ¨βπ¬π°οΈ
01.02.2025 10:33 β π 0 π 0 π¬ 1 π 0
Two images of clouds on Mars. Left image: clouds and dust at the Northern Polar Region of Mars during the local spring (HRSC image). Right image: clouds and dust at the Northern Polar Region of Mars during the local winter (VMC image). The left panel shows a textured spiral dust storm (brownish) mixed with water ice clouds (bright white) (indicated by arrows). The right panel shows the North Polar Hood, a large scale water ice cloud system.
The IAG #Planetary Gemorphology Image of the Month πΈ for February is now available. Dr. MÀÀttΓ€nen, Dr. Tirsch and Dr. @jorgehb.bsky.social show us the wonderful variety in clouds on Mars βοΈπ€οΈπͺοΈ planetarygeomorphology.wordpress.com/2025/02/01/a...
01.02.2025 10:33 β π 4 π 1 π¬ 1 π 1
Cutting edge research into HyperVelocity Impact and Space and Planetary Environment Simulation at the Open University, Milton Keynes, United Kingdom.
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