Rocks. On Mars.
Rocks.
On Mars.
Photographed today.
12.03.2026 07:58
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Rocks. On Mars.
Rocks.
On Mars.
Photographed today.
NEW: Remember in 2022 when NASA booped an asteroid with a kamikaze spacecraft to prove they could swat away Earthbound space rocks and save the world?
Well it turns out they booped it *so hard* that the bigger asteroid nearby ALSO got booped!
Me @ NatGeo www.nationalgeographic.com/science/arti...
A 1944 map by geologist Harold Fisk charts a 40-mile stretch of the Mississippi River from Friars Point to Gunnison, Mississippi. Fisk used aerial photos and maps to estimate the past and then-present channels. Source: https://www.nationalgeographic.com/science/article/mississippi-rivers-hidden-history-uncovered-by-lidar?fbclid=IwY2xjawQYXkdleHRuA2FlbQIxMABicmlkETFCZ2JBT2tWdVlXMmEzNU5Uc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHsbjW-Yuubr_o_Kfeh0Elzc94geDwfXIZmeNL7NyljEBAOEjH53m2QLSo1NF_aem__4NkCIJ_D8J6mI1e8eMByg
Rivers are living beings.
A line graph showing NSF grant awards made through 2/27/26 for fiscal year 2026 compared with grant awards for fiscal years 2021-2025.
NSF Update (Awards through 2/27/26)
Directorates to follow
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Just very relaxed Oreo 🐄 🐈
#cats #caturday #cowcat
We did some GPR in class today with the students, led by a geophysicist:
"Have you ever watched those crime shows where they use GPR and have a high resolution of a dead body image buried underground? That’s basically what we’re doing, except without the high-resolution part."
Blue wing #sketchbook #oilpainting #art
rock with lichen
listen, girls need pockets because we need a place to put cool rocks and shit
#cat #caturday #blackcat
Tuna at the new screened porch!
My dog when I have to say "WHAT ARE YOU EATING" on a walk
Occasionally reminded that Georgia added a “post tenure review” process bc they were so certain that professors became deadweight once they had job security, and all the outcomes have proven JUST THE OPPOSITE! People work harder and in more complex ways when they feel secure in their employment.
#cat #caturday with Oreo. The boy who is still sick and under quarantine 🤧
And smaller cars, better public transit, and more bike infrastructure.
As a geoscientist, I agree with this message:
HiPOD: Looking for Avalanches
The North Polar layered deposits are large deposits of dusty water-ice in the northern polar region of Mars. One interesting aspect Is that we have observed numerous avalanche events here.
https://uahirise.org/hipod/ESP_069857_2650
#Mars #science #NASA
Rhodochrosite with Galena, Sphalerite and Chalcopyrite which present white, amber, lead and pinkish colours across the specimen.
Happy Galena-tines!
Rhodochrosite with Galena, Sphalerite and Chalcopyrite.
When hit, Galena will break along three directions of weakness that meet at right angles, creating smaller cubes. Galena’s hardness is similar to that of a fingernail.
Take a good look at this close-up of Io — the terminator slices it straight down the middle. Right side catches full sunlight and lights up in these vivid yellow-oranges. Left? Mostly blacked out, but you can still make out stuff because Jupiter's glow is bouncing off it (that's the Jupitershine doing its thing). The ground's a mess: rough everywhere, spotted with these huge volcanic sinks called paterae, plus darker smudges — sulfur gunk or silicates most likely — and patches that glow a bit brighter. Those could be fresh lava spills or just sulfur dioxide frost hanging around.
🧵1/4
How intriguing is this view of Jupiter's rocky moon Io, the most volcanically active body in the Solar System? 🔭 🧪⚛️
This is a gift coming from Juno spacecraft that made a 2nd close flyby...
Pic by NASA/SwRI/MSSS
Mission Phase: PERIJOVE 58
➡️ missionjuno.swri.edu
#space #astronomy #science
#FossilFriday Cousins in life, companions in death. Belemnite guard by chance preserved in the body chamber of the ammonite Parkinsonia from the Jurassic.
Photo of the cover of a textbook "The Archean Earth, second edition."
890 pages of light reading... ⚒️
1) A wide but shallow circular hole cut into cement-like rock surrounded by dust and grit debris from the operation. The powdered debris is grey white in contrast to the iron oxide rich dust covering undisturbed areas.
2) Same subject as image 1 but closer.
3) Seams protrude up from a section of rough cement-like rock floor, small pebbles and grit lay in divots and channels in its surface.
4) Same subject as image 3 but closer.
NASA Mars Perseverance Rover Sol 1,770 (11th February, 2026)
Close-ups of a new abrasion and part of the adjacent rock floor
SHERLOC WATSON cam
S/D 85/0
CC BY-NC-SA 4.0 Credits: NASA / JPL-Caltech / MSSS / Martian-Observer
Source: mars.nasa.gov/mars2020/mul...
An art installation by Maarten Inghels. The photo is a view of paving sets. Mist of these are grey, but the central set in the image is dark brown and engraved with the words ‘I used to be a mountain’.
‘I used to be a mountain’ by Maarten Inghels onboards.be/nl/product/m...
📷 Maarten Inghels/Onboards Biennale
#urbangeology
Welcome back to #TrilobiteTuesday
Here is Asaphus lepidurus from the Middle Ordovician rocks of St. Petersburg, Russia. Trilobites from these limestones have a beautiful caramel colored shell and are preserved three-dimensionally!
Images of the Venus surface recorded by Venera Landers (reprocessed images © Don P Mitchell, used with permission). Venera 9 landed on a 15°–20° slope, the top of which is visible to the upper right; downhill is behind the camera view at approximately the 8 o’clock position (Florensky 1977). The left images of Venera 13 and 14 are from the spacecraft Camera 1 (rear camera), and the right images are from Camera 2 (front camera). The color images had lower signal-to-noise, and here the color portions have been combined with the clear filter images (Don P Mitchell per processing description at http://mentallandscape.com/V_DigitalImages.htm)
Oddly, I had a hard time thinking of Venus as a sedimentary active place. But there is an atmosphere with wind, there is physical and (strong) chemical erosion, there is tectonic to form gradients... so, yes, of course it's sedimentary active. 🧪
Link: link.springer.com/article/10.1...
HiPOD: Troughs and Ridges in Chryse Planitia
This image presents us with wide troughs with a narrow ridge running down the middle. How did these form? Chryse Planitia is flat lowland region in the Northern Hemisphere of Mars.
https://uahirise.org/hipod/ESP_076659_2105
#Mars #science #NASA
No new pictures. Where you at mentally?
That happens to me a few times as well. It is even worse when your field or topic is very niche...
Image cutout shows a pedestal crater on the surface of Mars. The ejecta blanket from the original impact is still visible around the crater, because it was more resistant to erosion than the surrounding terrain.
A closeup of the impact crater. The crater rim is very eroded and there are numerous large boulders around the crater.
HiPOD: About a Pedestal Crater
The objective of this observation is to examine a pedestal crater here in Deuteronilus Mensae. A pedestal crater is when the ejecta from an impact settles and is more erosion-resistant than the surrounding terrain.
https://uahirise.org/hipod/ESP_076643_2260
#Mars
Charlotte and Tuna keep looking under the door. I hope they get along 🤨
Meet our new cat OREO!
He is a 2yo from the shelter. He immediately came out yesterday, wanted to be pet, and purrs. He is happy to be picked up as well!
#cats #tuxedocat #cowcat #caturday but not saturday 🫠
We also accidentally got this little guy in the process. We released her back to the lake shortly afterwards. 🐢