AGU Planetary Sci
@AGUPlanetary
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We're into everything planetary from studying the nature of planets to the planning and implementation of space missions for exploration and discovery.
Joined November 2010
๐ @theAGU Planetary Sciences Section Newsletter Highlights: โข Caregiver Awards โ apply by 5 Dec โข Student/Early Career Travel Awards โ 5 Dec โข Meet with AGU Journal Editors ๐ Full newsletter: https://t.co/b5XFdsoRq7
#AGU25 #PlanetaryScience #AGUNewsletter
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๐ How deep do Uranusโs winds go? New study shows gravity signals (J5โJ8) can reveal wind depth โ but only if a Uranus orbiter flies inside the rings. Guidance for future mission design ๐ญ ๐ https://t.co/hkirlOoe6T
#Uranus #PlanetaryScience #Atmosphere #AGU25 #AGUPSS25
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๐ Ancient Mars was wetter than we thought! New study maps >15,000 km of fluvial ridges in Noachis Terra โ boosting drainage density by 18%. ๐ง Evidence for long-lived, precipitation-fed rivers ~3.7 Ga. ๐ https://t.co/YV1R7gT6bA
#Mars #PlanetaryScience #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
A large area survey of Noachis Terra, Mars using 6ย m/pixel images found >15,000ย km of fluvial sinuous ridges These ridges record ancient depositional systems indicating sustained overland flow of...
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How reliable are lunar crater counts for surface age dating? ๐ณ๏ธ Reveals researcher variability in crater ID ๐ Both sites ~3.6โ3.7 Ga old ๐ Calls for better crater mapping standards Read more at๐ https://t.co/Mc5nOK1jnT
#CraterCounting #PlanetaryGeology #AGU25 #AGUPSS25
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๐ How does space weathering affect carbon-rich worlds? New study shows: ๐ฌ Carbon alone can darken & redden surfaces โ no nanophase Fe needed ๐ช Graphitization controls reflectance & albedo ๐ https://t.co/tLR4tZrleW
#SpaceWeathering #Mercury #Spectroscopy #AGU25 #AGUPSS25
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๐ง New SHARAD study reveals ~1.2 trillion mยณ of ice in Phlegra Montes, Mars! Finds terraced & hanging glaciers โ first detected by radar โ reshaping our view of Martian glacial systems. ๐ https://t.co/2LxbaRGBtY
#Mars #Glaciers #PlanetaryScience #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
Radar survey of Phlegra Montes reveals glaciers with bulk permittivity ฮตโฒย =ย 3.3ย ยฑย 0.25, detecting Mars' first terraced and perched glaciers Seven new glacier detection sites at Phlegra Montes hav...
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โก New study models low-temp plasma chemistry simulating Titanโs atmosphere ๐ Findings: Acetylene drives N-rich organics Links gas & solid phases in tholin formation Insights from NASA Ames COSmIC ๐ https://t.co/JBzz4oP2Po
#PlanetaryScience #Astrochemistry #AGU25 #AGUPSS25
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๐ New study: Spectroscopy of the Hamburg Meteorite (Michigan H4) Combining VNIR, MIR, Raman & Mรถssbauer data reveals mineral modes, Fe oxides, and carbon bands โ linking the meteorite to multiple asteroid classes. ๐ https://t.co/2A4HZ2S4sH
#PlanetaryScience #AGU25 #AGUPSS25
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๐ Why is the Moonโs dust cloud thicker at dawn? New study finds ๐ก๏ธ temperature affects how micrometeoroid impacts eject lunar dust. Explains asymmetry seen by NASAโs LADEE mission! Read more at๐ https://t.co/S2EUSkp02c
#Moon #LunarScience #PlanetaryScience #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
The lunar regolith's temperature influences the ejecta mass caused by a micro-meteoroid impact, certainly caused by the thermal softening This thermal dependency can explain the asymmetry of the ...
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๐ชจ Tiny craters, big clues! Study of 80 000 <50 m craters in Valles Marineris shows: ๐ Linear depth-diameter relation ๐ Shallower craters on layered deposits โ erosion rules! Read more at๐ https://t.co/SL10oruoS9
#Mars #PlanetaryScience #Craters #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
We mapped over 80,000 craters with diameters smaller than 50ย m in Valles Marineris on Interior Layered Deposits and landslide terrains We present a depth versus diameter dependency close to a lin...
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๐ October @theAGU Planetary Planetary Science Newsletter is out! ๐ Celebrate our new Fellows & Awardees ๐ค Donโt miss Shoemaker & Sagan Lectures ๐๏ธ Late-breaking sessions due Nov 5 ๐ฌ Join AGU Days of Action, Oct 23 Read at: https://t.co/uZMp5rBgj2
#AGU2025 #PlanetaryScience
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๐ง JWST detects deuterated water ice on Saturnโs moons! ๐ช D/H ratio โ 1.5ร VSMOW โ much higher than Saturnโs atmosphere ๐ Points to icy materials that never reequilibrated in the disk Read more at ๐ https://t.co/FfLhFZUv1Y
#Saturn #JWST #PlanetaryScience #AGU25 #AGUPSS25
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๐ช Mars update! New study of Jezero Crater regolith w/ Perseveranceโs PIXL shows: ๐ฌ Diverse minerals ๐ง Salt-rich, chlorine-enriched soils ๐ง Signs of hydration tied to water cycling ๐ https://t.co/YId8Nn85qZ
#Mars #Perseverance #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
The chemistry and mineralogy of Martian regolith were newly mapped at a high spatial resolution (<1ย mm) Local, regional, and global components were identified and are likely contained within two ...
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๐๐ New study: Venus, Earth & Mars hold the key to exoplanet climates! ๐ Geological processes matter as much as stellar effects โ๏ธ Ignoring geology risks oversimplifying habitability Read more at๐ https://t.co/2UpsMnNHxE
#Exoplanets #PlanetaryScience #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
Geological processes have a significant effect on planetary atmospheres, as exemplified by the planets in our solar system Examining the behavior of Venus, Earth, and Mars helps us understand the...
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โ๏ธVenusโs clouds arenโt just sulfuric acid! Re-analysis of Pioneer Venus (1978) data shows aerosols contain ~60% water, ~20% ferric sulfate & ~20% sulfuric acid, plus cosmic traces. New clues for cloud chemistry ๐ช Read more at๐ https://t.co/Gfeqq64DsQ
#Venus #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
The Pioneer Venus Large Probe results were re-interpreted as the thermal and evolved gas analysis of aerosol composition Venus' aerosols from the middle and lower clouds contain substantial water...
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๐ฅ On Christmas Eve 2021, a meteoroid formed a 150-m crater on Mars, exposing the lowest-latitude water ice ever found! Simulations show the ice came from a shallow, patchy layer just 3.2โ11 m deep. โ๏ธ๐ด Read more at๐ https://t.co/OVulWUyNRy
#Mars #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
We successfully simulated the formation of the largest fresh crater observed to have formed on Mars using iSALE3D shock physics code The most likely impact scenario is a 6-m-wide impactor strikin...
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๐ช Titanโs craters are shallower than Ganymedeโs. Simulations show a 5โ15 km clathrate crust relaxes crater depths, while erosion & infill erase central peaks. Insight into Titanโs hidden geology! ๐ ๐ https://t.co/3YRgLDJXRY
#Titan #AGU25 #AGUPSS25
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๐จ๐ On Venus, winds climb slopes at noon & rush downslope at night. Slope dynamicsโnot just elevation, shape Venusโ surface climate! ๐ก๏ธ Read more at: https://t.co/gLMNMG0QG4
#VENUS #AGU25 #AGUPSS25
agupubs.onlinelibrary.wiley.com
For the first time, a Venus mesoscale climate model is used to simulate the local near-surface winds dynamics Modeled slope winds are changing direction during the day due to IR cooling, and are ...
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๐๐ช JunoCam snapped ~100 images of Io in 2023โ24, mapping >50% of its surface! Highlights: new lava flows, volcanic plumes, polar mountains & Jupiter-shine nightside views ๐ฅ๐ Read more at: https://t.co/1yCq8SEQYy
#Juno #Io #PlanetaryScience #AGUPSS25 #AGU25
agupubs.onlinelibrary.wiley.com
JunoCam imaged Io at scales as small as 1ย km/pixel North polar region coverage was improved from previous missions New mountains and lava flows were identified
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๐ข Students! Show off your data viz skills in the Freilich Competition ๐โจ ๐ $3,000 travel grant + present at the NASA Theater @ #AGU25! โฐ Apply by 10 Sept โ https://t.co/55EK7BQKDQ
#DataViz #NASA #FreilichCompetition #AGU25 #AGUPSS25
agu.org
This program provides an opportunity for students to demonstrate creative ways to visualize data and present complex problems in the Earth, space and related scientific disciplines.
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