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gabeeggers.bsky.social
Dr. Gabriel Eggers
@gabeeggers.bsky.social
1K followers 530 following 1.3K posts
Upjumped farmboy from Missouri. Visiting Professor at Wesleyan University interested in volcanism of Venus, Earth, Mars, etc. #FirstGen. Do good recklessly. He/Him.
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · Mar 7
Nine years ago today I saw a BIG rock in Mexico that even had wispy steam emission from its summit, so you could say that was a good day.
A rare clear view of the summit of Popocatépetl, a volcano near Mexico City. Before a dark foreground of pine, the steep, rocky sides of the volcano are bright white with snow and ice as the sun shines on it. As the view is straight on from ground-level, you cannot see the crater at its summit, but white wispy clouds of water vapor rise from it.
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 4h
I'd agree regarding St. Louis!
gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 4h
Ozarks extends a little far northeast in my experience, but I appreciate the nuance in this chart. But it really captures how the area where I grew up (~100 miles south of St. Louis along the river) was a crossroads in many ways.

I'd love to see the methodology in making this, though!
williamhazen.bsky.social
William Hazen @williamhazen.bsky.social · 1d
This is the most accurate depiction of the Midwest to date. Wichita has always felt like the last Midwest city while also being the first plains city.
Cultural Regions of the US
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Reposted by Dr. Gabriel Eggers
radplanets.bsky.social
michael @radplanets.bsky.social · 1d
it might be a tiny smudge but it’s OUR* tiny smudge 🥰

*temporarily, until it jets back off into interstellar space
esa.int
European Space Agency @esa.int · 1d
☄️ 🔭 #3I/ATLAS comet update!

On 3 October, our ExoMars Trace Gas Orbiter (TGO) turned its eyes towards interstellar comet 3I/ATLAS as it passed close to Mars.

Read more: esa.int/Science_Expl...
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Reposted by Dr. Gabriel Eggers
bookshop.org
Bookshop.org @bookshop.org · 1d
Can’t decide what to buy on Prime Day?

Try: absolutely nothing, and then go support indie bookstores instead 📚
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Reposted by Dr. Gabriel Eggers
lasrina.bsky.social
Skeletal Viking Amy @lasrina.bsky.social · 2d
Can I offer you some nice gourds in these trying times?
Yellow and red pumpkins All kinds of weird lumpy gourds mixed together Many different colors and types of pumpkin
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Reposted by Dr. Gabriel Eggers
theplanetaryguy.bsky.social
Paul Byrne @theplanetaryguy.bsky.social · 2d
Your aperiodic reminder that this is the true scale of Saturn's moon Enceladus and the biggest volcano in the Solar System, Olympus Mons on Mars.
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 2d
I was reading a book this morning, and it analogized the size of Enceladus as being ~ the distance between Pittsburgh and Philadelphia. I knew it was small among the moons that are talked about regularly, but I don't think I ever realized it was that small.
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 2d
That's a delightful shirt!
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Reposted by Dr. Gabriel Eggers
cristianfarias.com
Cristian Farias @cristianfarias.com · 3d
This video of Chicagoans intervening to save a man from being abducted off the streets by ICE is making the rounds on Instagram.

Community action works.

Source: www.instagram.com/reel/DPZL2AL...
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 4d
As with many things, the current administration is trying to ruin Landsat Next in the name of "affordability."
Landsat Next | Landsat Science
The Landsat Next project is currently assessing alternate mission architectures to support more affordable ways to maintain the continuity of Landsat imagery per the language in the FY26 President’s B...
landsat.gsfc.nasa.gov
gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 4d
Y'all, I know I don't do as much Earth remote sensing, but Landsat truly is a beautiful and important program.
Landsat 9 satellite image (path 23, row 43) acquired on September 29, 2025. It shows a green, forested expanse with brown fields to the south. Two thin, dark blue rivers join together into one. A few spots of white clouds are seen. The scene is southeastern Missouri (and southern Illinois and western Kentucky) where I grew up!
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 5d
Call me crazy, but if people were questioning my mental competence and whether I was just a figurehead who's completely out of it...

...I wouldn't post a song saying that Russ Vought wields, "the pen, the funds, and the brain."
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
"We are the champions, my friends,
And we'll keep on fighting 'til the end!"

Congratulations, #Kyanite! I've been voting for this mineral since its first-round victory over diamond in 2017, and I'm ecstatic that it finally gets the laurels it deserves! #MinCup25
mineralcup.bsky.social
Mineral Cup #MinCup25 @mineralcup.bsky.social · 6d
We have a #MinCup25 champion!!

Congratulations, #Kyanite!
www.mineralcup.org/2025

After eight years of competing, another few hours to verify votes was nothing, right?

Amazing first run, #Tugtupite, and better luck next year.
2025 — Mineral Cup
www.mineralcup.org
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
I see the state mineral of Missouri!!! I know who I'm rooting for!
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
Nooooo, I've been campaigning for #kyanite since the very first year. 😭
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
Less than an hour left, #kyanite gang!
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Reposted by Dr. Gabriel Eggers
lithosqueer.bsky.social
Wander @lithosqueer.bsky.social · 6d
Alright - I’ve been pretty quiet this #MinCup25 but now that it’s down to the final hour (or so), I have a story to share, in favor of #kyanite
It’s about geology, field camp, and the kind of learning that happens despite difficulty, and because of great TAs.
🧵
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
This is a wonderful story! Thank you for sharing it.
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
Team Kyanite!!!
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
Getting the groupchat invested in the #MinCup25 final.

Vote #kyanite!
Red person: TUGTUPITE CAN KICK ROCKS [2 surfboard dog reacts, 1 heart] Blue person: I'm not worried about that. Feels good to be on the winning team for once. [3 surfboard dog reacts] Blue person: OMFG KYANITE IS DOWN BY 1 NOW [2 crying reacts]
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Reposted by Dr. Gabriel Eggers
lithospheric.jorgegines.com
Jorge Ginés 🇪🇺 🌍🛰️ 🎃👻🎃👻🎃👻 @lithospheric.jorgegines.com · 10d
#kyanite, naturally.

#MinCup25
A sample of kyanite
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Reposted by Dr. Gabriel Eggers
sorosilicate.bsky.social
DL Whitney @sorosilicate.bsky.social · 7d
I’m very excited that #tugtupite made it to the finals but can it do this? Folded #kyanite in a high-pressure quartzite, western Türkiye. #MinCup25
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Reposted by Dr. Gabriel Eggers
hugolantman.bsky.social
Hugo van Schrojenstein Lantman @hugolantman.bsky.social · 7d
Since kyanite made it to the final of Mineral Cup, I decided to contribute. Vote kyanite!

Not only is kyanite gorgeous, it's also a key metamorphic index mineral and thus one of my favourite minerals to find. Here are a few examples I've come across.

See alt text for details

#MinCup25 #kyanite
A single crystal of blue kyanite on a matrix of white quartz. From the Betic Cordillera, Spain A green-blue kyanite eclogite with a reddish vein of garnet, bordered by more dark blue kyanite. From Pohorje, Slovenia. 2 euro cent coin for scale. Bright blue specks of kyanite in a gray-white matrix. These rocks are originally granulite of the Baltica basement, locally transformed to eclogite. From Holsnøy, Norway One of the most confusing samples I have ever found, this rock consists entirely of white kyanite, muscovite and quartz - here pictured on top of a red notebook with a mechanical pencil as scale. The orange colour seems to be iron oxide from the surroundings. Before finding this, I did not know that kyanite could be white! From the Betic Cordillera, Spain.
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Reposted by Dr. Gabriel Eggers
eos.org
Eos @eos.org · 7d
On this most auspicious #MinCup25 Final day, we are proud to show support for our blue-bladed friend, #kyanite! Not only is it a workhorse of geophysics and industry, but it is also seen as a symbol of calmness and clear minds (couldn't we all use a little more of that?) 💙
mineralcup.bsky.social
Mineral Cup #MinCup25 @mineralcup.bsky.social · 7d
#MinCup25 Final: After a month of learning and laughter, we’re at the final match to determine the 2025 Mineral Cup Champion! We have blue blades of #kyanite up against optical magician #tugtupite.

Vote: www.mineralcup.org/2025/vote/r5...
Results: www.mineralcup.org/2025/results...
Vote in 2025 Final Match — Mineral Cup
Click here to vote in Kyanite vs Tugtupite Photo credits: John Sobolewski and Parent Géry
www.mineralcup.org
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gabeeggers.bsky.social
Dr. Gabriel Eggers @gabeeggers.bsky.social · 6d
#KYANITE GANG RISE UP, THIS IS OUR YEAR! LET'S PUSH OUR ANISOTROPIC, METAMORPHIC INDEX MINERAL OVER THE FINISH LINE! #MinCup25
mineralcup.bsky.social
Mineral Cup #MinCup25 @mineralcup.bsky.social · 7d
#MinCup25 Final: After a month of learning and laughter, we’re at the final match to determine the 2025 Mineral Cup Champion! We have blue blades of #kyanite up against optical magician #tugtupite.

Vote: www.mineralcup.org/2025/vote/r5...
Results: www.mineralcup.org/2025/results...
Vote in 2025 Final Match — Mineral Cup
Click here to vote in Kyanite vs Tugtupite Photo credits: John Sobolewski and Parent Géry
www.mineralcup.org
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