Dr. Gwénaël Caravaca 🔴 ⛏
@gccmars.bsky.social
Martian geologist (PhD👨🎓) 🔴 ⛏
MSL ChemCam Co-I & Mars2020 SuperCam member
MSL titular chipmunk 🐿️
Also Costumer & Cosplayer & Embroiderer🧵
MSL ChemCam Co-I & Mars2020 SuperCam member
MSL titular chipmunk 🐿️
Also Costumer & Cosplayer & Embroiderer🧵
Pinned
Took a first pass at making a Mars-specific scientist starter pack. I know there are tons of people not on it, so please let me know who to add. #planetaryscience
go.bsky.app/CN9qaUs
go.bsky.app/CN9qaUs
You like Mars? Of course you do, you wouldn't be following me otherwise (or would you? 😏)
Anyway, here is the treat : a ready-to-follow list of other amazing Martians, only one click away. What are still waiting for? 👇
Anyway, here is the treat : a ready-to-follow list of other amazing Martians, only one click away. What are still waiting for? 👇
The kind of images that reminds me of my "former life", back when I was still a student and working on Dinosaurs footprints 🫠
Dinosaur
swim
tracks.
These scratches were made by the clawed feet of dinosaurs similar to the little carnivore Coelophysis, around 200 million years ago, as the reptiles paddled in a lake’s shallows.
Most dinosaur swim tracks described so far were made by carnivores. 🧪
swim
tracks.
These scratches were made by the clawed feet of dinosaurs similar to the little carnivore Coelophysis, around 200 million years ago, as the reptiles paddled in a lake’s shallows.
Most dinosaur swim tracks described so far were made by carnivores. 🧪
February 10, 2026 at 8:02 AM
The kind of images that reminds me of my "former life", back when I was still a student and working on Dinosaurs footprints 🫠
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
A mosaic of 88 Mastcam images captured yesterday by Perseverance
🔍 zoomhub.net/5r5D4
#Mars Feb. 5, 2026 - Sol 1764 🧪🔭
Credits: NASA/JPL-Caltech/ASU
🔍 zoomhub.net/5r5D4
#Mars Feb. 5, 2026 - Sol 1764 🧪🔭
Credits: NASA/JPL-Caltech/ASU
February 6, 2026 at 6:46 PM
A mosaic of 88 Mastcam images captured yesterday by Perseverance
🔍 zoomhub.net/5r5D4
#Mars Feb. 5, 2026 - Sol 1764 🧪🔭
Credits: NASA/JPL-Caltech/ASU
🔍 zoomhub.net/5r5D4
#Mars Feb. 5, 2026 - Sol 1764 🧪🔭
Credits: NASA/JPL-Caltech/ASU
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
HiPOD: Dune Convergence
The objective of this observation is to capture a junction where two wind regimes converge stacks of dunes. This image can also provide greater context of a nearby study site.
https://uahirise.org/hipod/ESP_076643_1375
NASA/JPL-Caltech/University of Arizona
#Mars #NASA
The objective of this observation is to capture a junction where two wind regimes converge stacks of dunes. This image can also provide greater context of a nearby study site.
https://uahirise.org/hipod/ESP_076643_1375
NASA/JPL-Caltech/University of Arizona
#Mars #NASA
February 5, 2026 at 3:01 PM
HiPOD: Dune Convergence
The objective of this observation is to capture a junction where two wind regimes converge stacks of dunes. This image can also provide greater context of a nearby study site.
https://uahirise.org/hipod/ESP_076643_1375
NASA/JPL-Caltech/University of Arizona
#Mars #NASA
The objective of this observation is to capture a junction where two wind regimes converge stacks of dunes. This image can also provide greater context of a nearby study site.
https://uahirise.org/hipod/ESP_076643_1375
NASA/JPL-Caltech/University of Arizona
#Mars #NASA
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Still on Mars with Curiosity. Still doing awesome science.
Love this recent "MAHLI after dark" image we acquired last month of our drill in the super cool boxwork region:
science.nasa.gov/resource/cur...
Love this recent "MAHLI after dark" image we acquired last month of our drill in the super cool boxwork region:
science.nasa.gov/resource/cur...
Curiosity Lights Up ‘Nevado Sajama’ at Night - NASA Science
NASA’s Curiosity Mars rover used LED lights on the end of its robotic arm to create this rare nighttime view of the Red Planet’s surface on
science.nasa.gov
January 28, 2026 at 1:01 AM
Still on Mars with Curiosity. Still doing awesome science.
Love this recent "MAHLI after dark" image we acquired last month of our drill in the super cool boxwork region:
science.nasa.gov/resource/cur...
Love this recent "MAHLI after dark" image we acquired last month of our drill in the super cool boxwork region:
science.nasa.gov/resource/cur...
While I'm working on my next paper on Zhurong rover outcrop models, I made a new online collection on Sketchfab ! Already 6 models, and I'll be growing it in the near future, get back to #Mars in #3D and #VR ;) skfb.ly/pFTnt
Utopia Planitia - Mars - Zhurong rover outcrops - A 3D model collection by Dr. Gwénaël Caravaca (@GCC_mars)
A collection of Digital Outcrop Models of outcrops explored by the Chinese Zurong rover (Tianwen-1 mission) during its ~1 year-long mission in the Utopia Planitia region (Mars northern plains) - Utopi...
skfb.ly
January 30, 2026 at 11:05 AM
While I'm working on my next paper on Zhurong rover outcrop models, I made a new online collection on Sketchfab ! Already 6 models, and I'll be growing it in the near future, get back to #Mars in #3D and #VR ;) skfb.ly/pFTnt
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
25 January 2004: #Opportunity rover (MER-B) landed on the surface of Mars . #History #NASA #Exploration #Mars
January 25, 2026 at 7:36 PM
25 January 2004: #Opportunity rover (MER-B) landed on the surface of Mars . #History #NASA #Exploration #Mars
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Sol 4788 MAHLI image of a rock with an interesting texture. Taken by the Mars Curiosity Rover.
flic.kr/p/2rTq18U
flic.kr/p/2rTq18U
January 25, 2026 at 6:33 PM
Sol 4788 MAHLI image of a rock with an interesting texture. Taken by the Mars Curiosity Rover.
flic.kr/p/2rTq18U
flic.kr/p/2rTq18U
Long time no share some 3D models, but here I am!
Check out three new outcrop and structure models in the Ainsa-Bielsa area - Spannish Pyrenees collection in #3D, #VR or #AR skfb.ly/pFJC9 via @sketchfab 🧐😊
Stay tuned for more soon!
Check out three new outcrop and structure models in the Ainsa-Bielsa area - Spannish Pyrenees collection in #3D, #VR or #AR skfb.ly/pFJC9 via @sketchfab 🧐😊
Stay tuned for more soon!
Ainsa-Bielsa area - Spannish Pyrenees - A 3D model collection by Dr. Gwénaël Caravaca (@GCC_mars)
Ainsa-Bielsa area - Spannish Pyrenees - A 3D model collection by Dr. Gwénaël Caravaca (@GCC_mars)
skfb.ly
January 23, 2026 at 10:41 AM
Long time no share some 3D models, but here I am!
Check out three new outcrop and structure models in the Ainsa-Bielsa area - Spannish Pyrenees collection in #3D, #VR or #AR skfb.ly/pFJC9 via @sketchfab 🧐😊
Stay tuned for more soon!
Check out three new outcrop and structure models in the Ainsa-Bielsa area - Spannish Pyrenees collection in #3D, #VR or #AR skfb.ly/pFJC9 via @sketchfab 🧐😊
Stay tuned for more soon!
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Curiosity rover first selfie at Rocknest Sol 85 - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2oTUtVq
January 9, 2026 at 7:01 AM
Curiosity rover first selfie at Rocknest Sol 85 - From Simeon Schmauß (stim3on.bsky.social) - https://flic.kr/p/2oTUtVq
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Superb video included in today's JPL update for #PerseveranceRover (www.jpl.nasa.gov/news/nasas-p...). With synthetic frames and obviously, the rover doesn't move that fast, but the final result is impressive.
Credit: NASA/JPL-Caltech
Credit: NASA/JPL-Caltech
December 18, 2025 at 5:18 AM
Superb video included in today's JPL update for #PerseveranceRover (www.jpl.nasa.gov/news/nasas-p...). With synthetic frames and obviously, the rover doesn't move that fast, but the final result is impressive.
Credit: NASA/JPL-Caltech
Credit: NASA/JPL-Caltech
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
A en croire la presse, on a régulièrement l'impression de découvrir qu'il y a eu un jour de l'eau liquide sur Mars. Mais qu'en sait-on finalement, et surtout comment le sait-on ?
Science : Nicolas Mangold, chercheur @cnrs.fr au LPG
Synthèse graphique : Claire Marc
#vulgarisation #SVT
#thread
1/7
Science : Nicolas Mangold, chercheur @cnrs.fr au LPG
Synthèse graphique : Claire Marc
#vulgarisation #SVT
#thread
1/7
December 17, 2025 at 8:57 AM
A en croire la presse, on a régulièrement l'impression de découvrir qu'il y a eu un jour de l'eau liquide sur Mars. Mais qu'en sait-on finalement, et surtout comment le sait-on ?
Science : Nicolas Mangold, chercheur @cnrs.fr au LPG
Synthèse graphique : Claire Marc
#vulgarisation #SVT
#thread
1/7
Science : Nicolas Mangold, chercheur @cnrs.fr au LPG
Synthèse graphique : Claire Marc
#vulgarisation #SVT
#thread
1/7
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
The registration to Geology & Planetary Mapping winter school is now open!
Registrations are now open!
Please note that participation requires Europlanet Society membership!
📎Register through the link in bio.
📩 For any questions: info@planetarymapping.eu
#PlanetaryMapping #GMAPWinterSchool2026
Please note that participation requires Europlanet Society membership!
📎Register through the link in bio.
📩 For any questions: info@planetarymapping.eu
#PlanetaryMapping #GMAPWinterSchool2026
December 12, 2025 at 9:42 AM
The registration to Geology & Planetary Mapping winter school is now open!
This sketch by @sharponlooker.net is moving in so many ways, from the title to the setting that is so accurate (ok I would have added multiple timezones on the clock to be 💯)
But it really gets the spirit of what we actually do when we operate our rovers 🫠
So many thanks for conveying it perfectly!😍
But it really gets the spirit of what we actually do when we operate our rovers 🫠
So many thanks for conveying it perfectly!😍
December 12, 2025 at 8:09 AM
This sketch by @sharponlooker.net is moving in so many ways, from the title to the setting that is so accurate (ok I would have added multiple timezones on the clock to be 💯)
But it really gets the spirit of what we actually do when we operate our rovers 🫠
So many thanks for conveying it perfectly!😍
But it really gets the spirit of what we actually do when we operate our rovers 🫠
So many thanks for conveying it perfectly!😍
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Approaching The Kimberley - sol 574 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/mqUjfH
December 10, 2025 at 6:00 AM
Approaching The Kimberley - sol 574 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/mqUjfH
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Cela fait déjà 13 ans 1/2 que le rover Curiosity explore le cratère Gale.
Cette récente mosaïque nous fait réaliser combien la poussière s'accumule sur son pont.
Cette récente mosaïque nous fait réaliser combien la poussière s'accumule sur son pont.
Very dusty Curiosity
Check out this highly detailed 70-images Mastcam mosaic of the rover deck, captured a week ago.
▶️ zoom app zoomhub.net/7E5n1
#Mars Dec. 2, 2025 - Sol 4736 🧪🔭
Credits images: NASA/JPL-Caltech/MSSS/fredk
Check out this highly detailed 70-images Mastcam mosaic of the rover deck, captured a week ago.
▶️ zoom app zoomhub.net/7E5n1
#Mars Dec. 2, 2025 - Sol 4736 🧪🔭
Credits images: NASA/JPL-Caltech/MSSS/fredk
December 9, 2025 at 2:01 PM
Cela fait déjà 13 ans 1/2 que le rover Curiosity explore le cratère Gale.
Cette récente mosaïque nous fait réaliser combien la poussière s'accumule sur son pont.
Cette récente mosaïque nous fait réaliser combien la poussière s'accumule sur son pont.
One big composite mosaic, can't wait to work on it and do a nice line-drawing of the sedimentary structures we're seing there 👀
MSL 4726-4731 CC
© NASA/JPL-Caltech/LANL/CNES/IRAP/NeV-T
Gigapan - gigapan.com/gigapans/238...
GIGAmacro - viewer.gigamacro.com/view/DkejR6h...
Gigapan Website - www.nev-t-gigamacros.com
#Mars #science #NASA
© NASA/JPL-Caltech/LANL/CNES/IRAP/NeV-T
Gigapan - gigapan.com/gigapans/238...
GIGAmacro - viewer.gigamacro.com/view/DkejR6h...
Gigapan Website - www.nev-t-gigamacros.com
#Mars #science #NASA
December 3, 2025 at 10:26 PM
One big composite mosaic, can't wait to work on it and do a nice line-drawing of the sedimentary structures we're seing there 👀
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Est-ce qu’on vient de trouver la preuve que la vie a existé ailleurs que sur Terre ?
🚀 Lucia Mandon travaille dans l’équipe qui a analysé une potentielle trace de vie sur #Mars.
▶️ youtu.be/qr7EeKOhV-0?...
- avec @ugrenoblealpes.bsky.social @cnrs.fr @cnrsalpes.bsky.social
#perseverance
🚀 Lucia Mandon travaille dans l’équipe qui a analysé une potentielle trace de vie sur #Mars.
▶️ youtu.be/qr7EeKOhV-0?...
- avec @ugrenoblealpes.bsky.social @cnrs.fr @cnrsalpes.bsky.social
#perseverance
Une trace de vie sur Mars ?
YouTube video by Observatoire Environnement Terre Univers (OSUG)
youtu.be
November 6, 2025 at 9:09 AM
Est-ce qu’on vient de trouver la preuve que la vie a existé ailleurs que sur Terre ?
🚀 Lucia Mandon travaille dans l’équipe qui a analysé une potentielle trace de vie sur #Mars.
▶️ youtu.be/qr7EeKOhV-0?...
- avec @ugrenoblealpes.bsky.social @cnrs.fr @cnrsalpes.bsky.social
#perseverance
🚀 Lucia Mandon travaille dans l’équipe qui a analysé une potentielle trace de vie sur #Mars.
▶️ youtu.be/qr7EeKOhV-0?...
- avec @ugrenoblealpes.bsky.social @cnrs.fr @cnrsalpes.bsky.social
#perseverance
New paper on Prow I was happy to contribute to from @mars-cat.bsky.social :)
Always happy to see more Prow and can't wait to write my own with ChemCam data!
Always happy to see more Prow and can't wait to write my own with ChemCam data!
Our paper on the geochemistry of interdune bodies in Gale crater was published yesterday.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
APXS Derived Geochemistry of Shallow Water Lens Bodies Within the Mirador Formation, Gale Crater, Mars—Evidence for Intermittent Wet Periods and Implications for the Water Record
We present Alpha Particle X-ray Spectrometer data for interdune bodies in the Contigo member of the Mirador formation, Gale crater
We interpret the lenses to represent a mixing between the host M...
agupubs.onlinelibrary.wiley.com
November 4, 2025 at 12:49 PM
New paper on Prow I was happy to contribute to from @mars-cat.bsky.social :)
Always happy to see more Prow and can't wait to write my own with ChemCam data!
Always happy to see more Prow and can't wait to write my own with ChemCam data!
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Awesome imagery captured two days ago by Curiosity, from its location within a trough of the boxwork structure. This is part of a larger, 360° Mastcam panorama.
#Mars Oct. 21, 2025 - Sol 4695 🧪🔭
Credit: NASA/JPL-Caltech/MSSS/fredk
#Mars Oct. 21, 2025 - Sol 4695 🧪🔭
Credit: NASA/JPL-Caltech/MSSS/fredk
October 23, 2025 at 10:20 AM
Awesome imagery captured two days ago by Curiosity, from its location within a trough of the boxwork structure. This is part of a larger, 360° Mastcam panorama.
#Mars Oct. 21, 2025 - Sol 4695 🧪🔭
Credit: NASA/JPL-Caltech/MSSS/fredk
#Mars Oct. 21, 2025 - Sol 4695 🧪🔭
Credit: NASA/JPL-Caltech/MSSS/fredk
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
ESP_016228_2650 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/eeVRRB
October 21, 2025 at 5:00 AM
ESP_016228_2650 - From UAHiRISE (NASA) (uahirise.bsky.social) - https://flic.kr/p/eeVRRB
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Martian Memories
The Junda striations captured by Curiosity
Feb. 19, 2014 (Sol 548); Credits: NASA/JPL-Caltech
science.nasa.gov/photojournal... 🧪 #PlanetSci #Mars
The Junda striations captured by Curiosity
Feb. 19, 2014 (Sol 548); Credits: NASA/JPL-Caltech
science.nasa.gov/photojournal... 🧪 #PlanetSci #Mars
October 19, 2025 at 11:42 AM
Martian Memories
The Junda striations captured by Curiosity
Feb. 19, 2014 (Sol 548); Credits: NASA/JPL-Caltech
science.nasa.gov/photojournal... 🧪 #PlanetSci #Mars
The Junda striations captured by Curiosity
Feb. 19, 2014 (Sol 548); Credits: NASA/JPL-Caltech
science.nasa.gov/photojournal... 🧪 #PlanetSci #Mars
A good dose of Kodiak because we miss it!
October 17, 2025 at 7:44 AM
A good dose of Kodiak because we miss it!
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
Mars on February 9 2025, imaged by the UAE’s Hope orbiter. In focus ate the large volcanos of the Tharsis Region, including Olympus Mons.
flic.kr/p/2rzpLEY
flic.kr/p/2rzpLEY
October 16, 2025 at 9:21 PM
Mars on February 9 2025, imaged by the UAE’s Hope orbiter. In focus ate the large volcanos of the Tharsis Region, including Olympus Mons.
flic.kr/p/2rzpLEY
flic.kr/p/2rzpLEY
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
🤖 Après #ChemCam & #SuperCam, voici #MicroLIBS : la nouvelle génération d’instruments laser français pour l’exploration martienne. 🔴
Un concentré de technologie… dans la taille d’une boîte à chaussures ! #CNES © CNES/RIBET Adrien, 2025
Un concentré de technologie… dans la taille d’une boîte à chaussures ! #CNES © CNES/RIBET Adrien, 2025
October 6, 2025 at 3:40 PM
🤖 Après #ChemCam & #SuperCam, voici #MicroLIBS : la nouvelle génération d’instruments laser français pour l’exploration martienne. 🔴
Un concentré de technologie… dans la taille d’une boîte à chaussures ! #CNES © CNES/RIBET Adrien, 2025
Un concentré de technologie… dans la taille d’une boîte à chaussures ! #CNES © CNES/RIBET Adrien, 2025
Reposted by Dr. Gwénaël Caravaca 🔴 ⛏
A thick layer of dust lift on the horizon
#NASA's #Mars #Perseverance rover
Mars Perseverance Sol 1642 Oct. 2, 2025: Left Navigation Camera (Navcam)
mars.nasa.gov/mars2020/mul...
NASA/JPL-Caltech/j. Roger
#NASA's #Mars #Perseverance rover
Mars Perseverance Sol 1642 Oct. 2, 2025: Left Navigation Camera (Navcam)
mars.nasa.gov/mars2020/mul...
NASA/JPL-Caltech/j. Roger
October 3, 2025 at 5:34 PM
A thick layer of dust lift on the horizon
#NASA's #Mars #Perseverance rover
Mars Perseverance Sol 1642 Oct. 2, 2025: Left Navigation Camera (Navcam)
mars.nasa.gov/mars2020/mul...
NASA/JPL-Caltech/j. Roger
#NASA's #Mars #Perseverance rover
Mars Perseverance Sol 1642 Oct. 2, 2025: Left Navigation Camera (Navcam)
mars.nasa.gov/mars2020/mul...
NASA/JPL-Caltech/j. Roger