Dr. Fred J. Calef III
@mapperwocky.bsky.social
Science Systems Engineer @NASA/JPL-Caltech. PhD in Geology. 30+ years Geospatial experience. PI for the FOSS4G Multi-Mission Geographic Information System (MMGIS https://github.com/NASA-AMMOS/MMGIS).
Not a NASA account.
Never met a rock I wouldn’t lick.
Not a NASA account.
Never met a rock I wouldn’t lick.
Pinned
Reposted by Dr. Fred J. Calef III
READ THIS ARTICLE FOR #NEWYEARS:
25 simple but POWERFUL resolutions you can make to improve your life AND YOUR CITY!
Revisit my most read @fastcompany.com article—the resolutions feel even MORE relevant now! Which ones resonate with you? What would you add? #HappyNewYear #Resolutions #NewYearsEve
25 simple but POWERFUL resolutions you can make to improve your life AND YOUR CITY!
Revisit my most read @fastcompany.com article—the resolutions feel even MORE relevant now! Which ones resonate with you? What would you add? #HappyNewYear #Resolutions #NewYearsEve
25 simple resolutions you can make to improve your city in 2019
What if we picked New Year's resolutions that improved our individual and family lives, while also improving our cities and communities?
www.fastcompany.com
December 26, 2025 at 6:19 PM
READ THIS ARTICLE FOR #NEWYEARS:
25 simple but POWERFUL resolutions you can make to improve your life AND YOUR CITY!
Revisit my most read @fastcompany.com article—the resolutions feel even MORE relevant now! Which ones resonate with you? What would you add? #HappyNewYear #Resolutions #NewYearsEve
25 simple but POWERFUL resolutions you can make to improve your life AND YOUR CITY!
Revisit my most read @fastcompany.com article—the resolutions feel even MORE relevant now! Which ones resonate with you? What would you add? #HappyNewYear #Resolutions #NewYearsEve
Reposted by Dr. Fred J. Calef III
His goal in life is the be an equine model/actor I think 😅😂
December 26, 2025 at 6:43 PM
His goal in life is the be an equine model/actor I think 😅😂
Reposted by Dr. Fred J. Calef III
Merry Christmas from me and my extremely tolerant horse Sammy!
December 26, 2025 at 6:26 AM
Merry Christmas from me and my extremely tolerant horse Sammy!
Reposted by Dr. Fred J. Calef III
When you cut the salaried experts and then have to firefight constant emergencies with freelancers who rightfully charge a premium for their expertise and bill by the hour-
Musk cut USAID and got thousands killed, all for this pathetic result.
This is his legacy
This is his legacy
December 26, 2025 at 7:43 AM
When you cut the salaried experts and then have to firefight constant emergencies with freelancers who rightfully charge a premium for their expertise and bill by the hour-
Reposted by Dr. Fred J. Calef III
“If you care about the bottom line, budgets & taxes, then you should care about urban biking, because it’s a money saver. It’s ironic when so-called fiscal conservatives attack biking, when their efforts just show a lack of understanding of math.” My interview with @modacitylife.com #CityMakingMath
Opinion: Why more urban cycling saves everyone money | Urbanized
The resulting benefits of a ‘car-less’ household are myriad, but few are as quantifiable as the money most people sink into a depreciating asset that sits unused for 95% of the time.
dailyhive.com
December 26, 2025 at 9:04 AM
“If you care about the bottom line, budgets & taxes, then you should care about urban biking, because it’s a money saver. It’s ironic when so-called fiscal conservatives attack biking, when their efforts just show a lack of understanding of math.” My interview with @modacitylife.com #CityMakingMath
Reposted by Dr. Fred J. Calef III
Meanwhile, every morning for my commute I step onto a metro train that:
- runs every 3 minutes
- carries nearly 1000 people at a time
- is fully electric
- costs €1 / a day for unlimited citywide transit on buses, trams, or trains
- has nearly 100% reliability
Oh, and it has automatic doors. 😇
- runs every 3 minutes
- carries nearly 1000 people at a time
- is fully electric
- costs €1 / a day for unlimited citywide transit on buses, trams, or trains
- has nearly 100% reliability
Oh, and it has automatic doors. 😇
“Because riders and passersby can be unreliable, Waymo pays workers in Los Angeles $20 or more for rescuing a robotaxi by closing a door, summoning help through an app called Honk that is like an Uber for towing companies.”
When robot taxis get stuck, a secret army of humans comes to the rescue
Waymo robotaxis get stranded when a passenger leaves the door open. Tow truck operators can get paid $22 to close a door and set them free again.
www.washingtonpost.com
December 26, 2025 at 9:24 AM
Meanwhile, every morning for my commute I step onto a metro train that:
- runs every 3 minutes
- carries nearly 1000 people at a time
- is fully electric
- costs €1 / a day for unlimited citywide transit on buses, trams, or trains
- has nearly 100% reliability
Oh, and it has automatic doors. 😇
- runs every 3 minutes
- carries nearly 1000 people at a time
- is fully electric
- costs €1 / a day for unlimited citywide transit on buses, trams, or trains
- has nearly 100% reliability
Oh, and it has automatic doors. 😇
Reposted by Dr. Fred J. Calef III
My first time seeing emperor penguins — and definitely didn’t expect it to be so close to McMurdo station #Antarctica 🇦🇶 ❄️ 🧪
@cires.colorado.edu @nsidc.bsky.social @cpom-uk.bsky.social #emperorpenguins
@cires.colorado.edu @nsidc.bsky.social @cpom-uk.bsky.social #emperorpenguins
December 26, 2025 at 9:40 AM
My first time seeing emperor penguins — and definitely didn’t expect it to be so close to McMurdo station #Antarctica 🇦🇶 ❄️ 🧪
@cires.colorado.edu @nsidc.bsky.social @cpom-uk.bsky.social #emperorpenguins
@cires.colorado.edu @nsidc.bsky.social @cpom-uk.bsky.social #emperorpenguins
Reposted by Dr. Fred J. Calef III
#FossilFriday Fine specimen of the problematical fossil Dickinsonia costata from the Ediacaran. On display at the South Australia Museum, Adelaide.
December 26, 2025 at 8:23 AM
#FossilFriday Fine specimen of the problematical fossil Dickinsonia costata from the Ediacaran. On display at the South Australia Museum, Adelaide.
Reposted by Dr. Fred J. Calef III
Why send a spacecraft like Solar Orbiter so close to the scorching Sun when we can take images of the Sun from Earth?
The short answer is science.
The long one is here 👉 https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Why_we_need_Solar_Orbiter
🔭 1/3
The short answer is science.
The long one is here 👉 https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Why_we_need_Solar_Orbiter
🔭 1/3
December 26, 2025 at 10:01 AM
Why send a spacecraft like Solar Orbiter so close to the scorching Sun when we can take images of the Sun from Earth?
The short answer is science.
The long one is here 👉 https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Why_we_need_Solar_Orbiter
🔭 1/3
The short answer is science.
The long one is here 👉 https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Why_we_need_Solar_Orbiter
🔭 1/3
Reposted by Dr. Fred J. Calef III
⭐️ Recap of 2025 - Our Biggest Stories of the Year ⭐️
👉 Throughout the year we've been installing new interpretation and information points across Charnwood Forest - sharing the Geopark's amazing heritage.
🌐 Read more about our work in Thurcaston: www.charnwoodforest.org/thurcastons-...
👉 Throughout the year we've been installing new interpretation and information points across Charnwood Forest - sharing the Geopark's amazing heritage.
🌐 Read more about our work in Thurcaston: www.charnwoodforest.org/thurcastons-...
December 26, 2025 at 8:30 AM
⭐️ Recap of 2025 - Our Biggest Stories of the Year ⭐️
👉 Throughout the year we've been installing new interpretation and information points across Charnwood Forest - sharing the Geopark's amazing heritage.
🌐 Read more about our work in Thurcaston: www.charnwoodforest.org/thurcastons-...
👉 Throughout the year we've been installing new interpretation and information points across Charnwood Forest - sharing the Geopark's amazing heritage.
🌐 Read more about our work in Thurcaston: www.charnwoodforest.org/thurcastons-...
Reposted by Dr. Fred J. Calef III
The team behind Climate.us aims to provide the same kind of reliable, fresh content that used to be available via Climate.gov. We hope you’ll support us. #ClimateForUs
December 17, 2025 at 1:10 PM
The team behind Climate.us aims to provide the same kind of reliable, fresh content that used to be available via Climate.gov. We hope you’ll support us. #ClimateForUs
Reposted by Dr. Fred J. Calef III
Merry Christmas from Tasmania! Just back from 7 days and 100 km of hiking the Overland Track from Cradle Mountain to Lake St Clair. We had snow ❄️ a day after mid summer in Australia! Beautiful and constantly changing landscape, and made some new friends along the way. :) 1/n
December 24, 2025 at 8:47 PM
Merry Christmas from Tasmania! Just back from 7 days and 100 km of hiking the Overland Track from Cradle Mountain to Lake St Clair. We had snow ❄️ a day after mid summer in Australia! Beautiful and constantly changing landscape, and made some new friends along the way. :) 1/n
Reposted by Dr. Fred J. Calef III
Half a year later, here's a compilation of climate map sequences for Phase Two of the Centaur Alien Homeplanet commission, for @jayeatonart.bsky.social's Runaway to the Stars worldbuilding project (jayeaton.site/RunawayToTheStars/home)
www.youtube.com/watch?v=naKm...
Blender and Photopea, 2025
1/2
www.youtube.com/watch?v=naKm...
Blender and Photopea, 2025
1/2
December 25, 2025 at 7:52 PM
Half a year later, here's a compilation of climate map sequences for Phase Two of the Centaur Alien Homeplanet commission, for @jayeatonart.bsky.social's Runaway to the Stars worldbuilding project (jayeaton.site/RunawayToTheStars/home)
www.youtube.com/watch?v=naKm...
Blender and Photopea, 2025
1/2
www.youtube.com/watch?v=naKm...
Blender and Photopea, 2025
1/2
Reposted by Dr. Fred J. Calef III
December 25, 2025 at 10:08 PM
Reposted by Dr. Fred J. Calef III
Activists in LA photographed immigration officers wearing Halloween masks of horror movie villains while conducting raids. When a citizen journalist asked DHS for comment, a spokesperson replied, “Happy Halloween.”
trib.al/HbjjFEp
trib.al/HbjjFEp
Trump’s Immigration Nightmare: It Is Happening Here
With astonishing speed, the administration has toppled the most cherished pillars of a free society. And the experts agree: It’s all going to get much, much worse.
trib.al
December 25, 2025 at 10:02 PM
Activists in LA photographed immigration officers wearing Halloween masks of horror movie villains while conducting raids. When a citizen journalist asked DHS for comment, a spokesperson replied, “Happy Halloween.”
trib.al/HbjjFEp
trib.al/HbjjFEp
Reposted by Dr. Fred J. Calef III
Best way to spend Xmas: under the sea 🐟🐠🌊🤿
December 25, 2025 at 10:11 PM
Best way to spend Xmas: under the sea 🐟🐠🌊🤿
Reposted by Dr. Fred J. Calef III
Thin Section Thursday!
A photo of garnet peridotite from Francis "Joe" Boyd in 2000, who allowed Carnegie scientists to saw off a slice.
The xenolith is embedded in epoxy, which has turned a bit yellow. It is about 15 cm wide.
& a close up. Contributed by Andreas Möller. #thinsectionthursday
A photo of garnet peridotite from Francis "Joe" Boyd in 2000, who allowed Carnegie scientists to saw off a slice.
The xenolith is embedded in epoxy, which has turned a bit yellow. It is about 15 cm wide.
& a close up. Contributed by Andreas Möller. #thinsectionthursday
December 25, 2025 at 1:21 PM
Thin Section Thursday!
A photo of garnet peridotite from Francis "Joe" Boyd in 2000, who allowed Carnegie scientists to saw off a slice.
The xenolith is embedded in epoxy, which has turned a bit yellow. It is about 15 cm wide.
& a close up. Contributed by Andreas Möller. #thinsectionthursday
A photo of garnet peridotite from Francis "Joe" Boyd in 2000, who allowed Carnegie scientists to saw off a slice.
The xenolith is embedded in epoxy, which has turned a bit yellow. It is about 15 cm wide.
& a close up. Contributed by Andreas Möller. #thinsectionthursday
Reposted by Dr. Fred J. Calef III
Merry Christmas everyone. As a geologist, I'm happy whenever I get coal in my stocking
December 25, 2025 at 3:50 PM
Merry Christmas everyone. As a geologist, I'm happy whenever I get coal in my stocking
Reposted by Dr. Fred J. Calef III
This month saw the official launch of the Planetary Futures Public Art Residency and the welcome of our newest artist-in-residence, Adrien Segal. Adrien weaves together science, landscape, data, and materiality to create cross-disciplinary sculptural works that evoke deep emotional responses... 🧪 🐡
December 25, 2025 at 8:00 PM
This month saw the official launch of the Planetary Futures Public Art Residency and the welcome of our newest artist-in-residence, Adrien Segal. Adrien weaves together science, landscape, data, and materiality to create cross-disciplinary sculptural works that evoke deep emotional responses... 🧪 🐡
Reposted by Dr. Fred J. Calef III
“Construction can’t continue”: South Texas builders say ICE arrests have upended industry www.texastribune.org/2025/12/24/s...
South Texas homebuilders say ICE arrests have slowed work
More than 380 people attended an impromptu meeting that industry leaders in the Rio Grande Valley hosted to draw attention to the chilling effect ICE arrests have had on construction.
www.texastribune.org
December 25, 2025 at 5:45 AM
“Construction can’t continue”: South Texas builders say ICE arrests have upended industry www.texastribune.org/2025/12/24/s...
Reposted by Dr. Fred J. Calef III
QRP to reintroduce yourself!
Hi, my name is Justin and I’m a multidisciplinary artist from St Louis who focuses on sculptures, especially the use of cardboard.
Here’s a few works!
Hi, my name is Justin and I’m a multidisciplinary artist from St Louis who focuses on sculptures, especially the use of cardboard.
Here’s a few works!
December 25, 2025 at 10:11 PM
QRP to reintroduce yourself!
Hi, my name is Justin and I’m a multidisciplinary artist from St Louis who focuses on sculptures, especially the use of cardboard.
Here’s a few works!
Hi, my name is Justin and I’m a multidisciplinary artist from St Louis who focuses on sculptures, especially the use of cardboard.
Here’s a few works!
Reposted by Dr. Fred J. Calef III
Christmas pavlova today immediately reminded me of Mt Tarawera where in 1886 CE basaltic magma erupted through white rhyolite domes, NZ. Delicious though
December 25, 2025 at 6:03 AM
Christmas pavlova today immediately reminded me of Mt Tarawera where in 1886 CE basaltic magma erupted through white rhyolite domes, NZ. Delicious though
Reposted by Dr. Fred J. Calef III
At some point in the next 48-72hrs I’ll be dropping some 3D printed lidar-derived volcano scale model tissue box covers! Including FIRST RUN Stromboli and Etna and 2nd run Erebus, the southernmost active volcano in world!
phaneritic.etsy.com
phaneritic.etsy.com
December 24, 2025 at 10:23 PM
At some point in the next 48-72hrs I’ll be dropping some 3D printed lidar-derived volcano scale model tissue box covers! Including FIRST RUN Stromboli and Etna and 2nd run Erebus, the southernmost active volcano in world!
phaneritic.etsy.com
phaneritic.etsy.com
Reposted by Dr. Fred J. Calef III
Cool tour of Crystal Caves today.
December 24, 2025 at 9:38 PM
Cool tour of Crystal Caves today.
Reposted by Dr. Fred J. Calef III
A little pedestal of unconformity outside of China Ranch:
⚒️
⚒️
December 24, 2025 at 9:15 PM
A little pedestal of unconformity outside of China Ranch:
⚒️
⚒️