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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · 7d

The IAG #Planetary Gemorphology Image of the Month 📸 October is online! Dr. Abdallah Zaki takes us on a field trip to ancient Mars, by studying hourglass-shaped landforms ⌛ - remnants of source-to-sink river systems💧🌕🧐👩‍🚀 #Mars #rivers #space
planetarygeomorphology.wordpress.com/2025/10/01/h...

Hourglass landforms: Evidence of source-to-sink fluvial deposition

Post contributed by Dr. Abdallah S. Zaki, Jackson School of Geosciences, University of Texas at Austin Mars provides an exceptional geological archive, preserving billions of years of pre-existing …

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · 22d

‪The IAG #Planetary Gemorphology Image of the Month 📸 for September is online! Dr. Anna Szynkiewicz shows evidence of late fluid flows in Gale crater, as she compares Martian sulfate-rich salt deposits with those on Earth! 🧂💧👩‍🚀
planetarygeomorphology.wordpress.com/2025/09/01/b...

Bright-toned sulfate-rich salts on Mars:Evidence of late fluid flows in Gale crater

Post contributed by Dr. Anna Szynkiewicz, Department of Earth & Planetary Sciences, University of Tennessee, USA Various secondary sulfate minerals have been detected by the Curiosity rover in …

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Aug 5

The IAG #Planetary Gemorphology Image of the Month 📸 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! 🌕😇✨

Bright dusty halos around mass wasting on Martian Sand dunes

Post contributed by Maria Kefa (master student), Dr. Susan Conway – LPG Nantes & Dr. Lonneke Roelofs – Utrecht University Mars’ winters are sufficiently cold that carbon dioxide (CO…

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Jul 2

The IAG #Planetary Gemorphology Image of the Month 📸 for July is now online! Dr. Vijayan shows us how you find recent boulder falls on the #Moon!
planetarygeomorphology.wordpress.com/2025/06/01/r...

Recent boulder falls on the Moon: Evidence from Boulder Fall Ejecta (BFE) tracks

Post contributed by Dr. Vijayan S., Planetary Sciences Division, Physical Research Laboratory, India One way to identify recent surface activity on the moon is through the study of lunar boulder fa…

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Jun 20

The IAG #Planetary Gemorphology Image of the Month 📸 for June has been online for some time now! PhD candidate JohnPaul Sleiman & Dr. Rachel Glade share some very exciting finds on lobate shapes on the hillslopes of #Mars!
planetarygeomorphology.wordpress.com/2025/05/30/l...

Lobate Patterns on Slopes in Mars’ Northern hemisphere

Post contributed by JohnPaul Sleiman (PhD Candidate) and Dr. Rachel Glade at Department of Earth and Environmental Sciences, University of Rochester, USA Walk along a periglacial hillside in Norway…

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · May 8

The IAG #Planetary Gemorphology Image of the Month 📸 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...

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.

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Apr 4

‪The IAG #Planetary Gemorphology Image of the Month 📸 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...

$A four panel image showing black and white photos of the surface of Enceladus. The surface of Enceladus is highly fractured and hosts a lot of craters. In the images, steep slopes around the geological structures are highlighted on which darker streaks are present.$

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

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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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

@bot.astronomy.blue signup

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

In an attempt to create a bigger following @bot.astronomy.blue signup.

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

More beautiful images of clouds can be found in the blog post! Follow us for monthly "out of this world" images and posts 🪐🌑👩‍🚀👨‍🔬🛰️

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planetarygeomorph.bsky.social @planetarygeomorph.bsky.social · Feb 1

The IAG #Planetary Gemorphology Image of the Month 📸 for February is now available. Dr. Määttänen, Dr. Tirsch and Dr. @jorgehb.bsky.social show us the wonderful variety in clouds on Mars ☁️🌤️🌪️ planetarygeomorphology.wordpress.com/2025/02/01/a...

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.

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