John Nelson @johnnelsonmaps.bsky.social I make posts about making videos about making maps about stuff.
Kenneth Field @kennethfield.bsky.social Cartography is my passion & profession. Author of CARTOGRAPHY. & THEMATIC MAPPING. Maps+drums+snowboards+footy+sarcasm. 🇬🇧 in 🇺🇸 Views mine. links.esri.com/mappyhour
Aly Ollivierre @alyolli.bsky.social Award-winning Freelance Cartographer @tombolomapsdesign.bsky.social | Ex-NatGeo Senior Cartographer
Mineral Cup & Ore Cup @mineralcup.bsky.social Which mineral is the best of them all? Campaign & vote in #MinCup each September. Next #OreCup in early 2027! www.MineralCup.org
Kyanite photo credits: Smithsonian Institution
Geospatial Professional Network @gpn-org.bsky.social The Geospatial Professional Network (formerly URISA) is a vibrant community uniting emerging and experienced GIS professionals through top-tier education, networking, and career development. Learn more: geospatialprofessionalnetwork.org
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
🌏 🚀 🔬
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
American Association for the Advancement of Science @aaas.org Advancing science, serving society.
One of the world’s largest general scientific societies and publisher of @science.org
Dr. Jonathan Foley @globalecoguy.bsky.social - Executive Director, Project Drawdown drawdown.org
- Climate scientist, working on solutions
- Passionate about science, communication, and hope
- Minnesota based, Maine born
- Personal account / My views
SciLine @sciline.org We offer free help to reporters with science. We offer help to scientists with media.
www.sciline.org
Kaycee @kc-mxd.bsky.social Scientist, gardener, tree hugger.
Kristin Sellers @kmsellers.bsky.social Cartographer . Geographer . Design Enthusiast . Analyst
@bnprime.bsky.social @bnprime.bsky.social 
LegalEagle @legaleagle.tv The Big Bird at LegalEagle. Believer in the rule of law. 
Gregg Hurwitz @gregghurwitzbooks.bsky.social NYT Bestselling Author of the Orphan X thrillers. Co-president, International Thriller Writers. I write TV, screenplays, and comics too. It beats working.
https://gregghurwitz.net/
Madeline Rouse @madrouse.bsky.social Maps & dance in Seattle!
Kaitlyn Gauvey @cherthappens.bsky.social I study billion-year-old silicified microfossiliferous rocks. Geologist. Carbonate/chert petrographer. Dabbling in spectroscopy. Karst science. Rock doc (PhD ‘25 at UTK). FHSU alumna (M.Sc.)
Aroid and Hoya enthusiast.
🥔🗺️ ᴘᴏᴋᴀᴛᴇᴏ ᴍᴀᴘs @pokateo.bsky.social 👋🏻 I'm Kate ᵉᵃᵗᵉʳ ᵒᶠ ᵖᵒᵗᵃᵗᵒᵉˢ ᵃⁿᵈ ᵐᵃᵏᵉʳ ᵒᶠ ᵐᵃᵖˢ
🌐 I make #geospatial & #GIS (more) fun by sharing #mappymeme s & #maptastic themes. #GISchat. ᵛᶦᵉʷˢᵐᶦⁿᵉ
http://linktr.ee/pokateo_maps
Courtney Shannon @cshannonpdx.bsky.social I post about maps, GIS, and environmental chemistry, and now there’s also a lot of energy and Portland posts, some microblogging. Coauthor on a paper on bird population modeling. Reviews everywhere: "She's too direct."
Portland, OR
Dr. Dawn Wright @deepseadawn.bsky.social Seafloor mapper, Chief Scientist of smart mapping company Esri, Oregon State U. GIS/oceans professor, EC50, cyclist, 1st Black submersible diver to Challenger Deep, builds w/LEGO, raised in Hawaii. NAS, NAE, ORCID 0000-0002-2997-7611; She/her; views mine
Amber Monroe @ambermonroe.bsky.social RN| Rockhound| Nature Lover| Explorer|
Anti-gatekeep| Mental•Health•Advocate|
SISU| Podcast host on Rockhound Talk LIVE|
Subscribe➡️ https://www.youtube.com/@RockhoundTalkLIVE |
The Ultimate Revolution is an Evolution of the Mind.
Ashley Powell, PhD ☕️🌱🐾 @fruitgal.bsky.social fruit research geneticist currently exploring the world of animal functional genomics // trail running + craft coffee // SAR K9 handler // lots of dogs 🐾
Gurdeep Pandher of the Yukon @gurdeep.ca In a world drowning in conflict and grief, we crave what keeps us alive: joy—our daily bread; hope—our living water; kindness—the roof over our souls.
sanjana! @sanjanacurtis.bsky.social big fan of stars 💻✨🦫🏳️🌈
Dr. Wendy Bohon @drwendyrocks.bsky.social Earthquake geologist 🧪⚒️ | Scicomm specialist 🎙️| Formerly USGS, IRIS, NASA | she/her | Views are mine | website: https://wendybohon.com/
“A delightful blend of scientific rigor and domestic chaos.”
Ryan L. Brown @ryanlinnbrown.bsky.social A very curious social-health psychologist!
🤠 Assistant Professor, Texas Tech University
💫 PI, @starlabteam.bsky.social
📄 Associate Editor, British Journal of Health Psychology
🎤 Host, Stress Puzzle podcast
ryanlinnbrown.com
Kiri Carini @kiricarini.com Geospatial Communicator.
Data + Stories for @developmentseed.org
@osmus.bsky.social Board Member
Hiking shenanigans. Desert dweller.
Mpls.St.Paul Magazine @mspmag.bsky.social The Best of the Twin Cities Since 1972. mspmag.com
Jason DeRusha @jasonderusha.com Radio host, former TV news anchor, Food Critic, Minneapolis-area dad and husband, DeRushaDownload.Substack.com
Sarah Bell @sarahbell.bsky.social Cartography • Geo-visualization • Geo-Scientist • Esri
Keynote speaker • Rock climber • behance.net/sarahbellmaps
Darren Incorvaia @megadarren.bsky.social Science journalist and silly billy
Senior reporter at Fierce Biotech
Other words in NYT, Science, Science News, etc.
Inveterate invertebrate evangelist
Opinions mine! Signal: dinc.49
Michele Tobias, PhD @micheletobias.bsky.social California Beach Biogeography & Geomorphology, Geospatial Data Science, Cartography, Open Source, UC Davis Library's keeper of the maps she/her
OSGeo FOSS4G #gischat #maptimeDavis
Bethany Brookshire @beebrookshire.bsky.social Sci journo, author of Pests: How Humans Create Animal Villains. Highly caffeinated. All bad takes mine. She/her
Kara Moore, Ph.D. @moorepsych.bsky.social Prof @UUtah • applied cognitive psychology researcher passionate about improving the legal system • inclusive sci • 1st gen • I love travelling!
Dr. Sarah Parcak @indyfromspace.bsky.social Professor, Archaeologist, Egyptologist, Award-winning writer of books, Dad joke lover, mom, rabble-rouser academic. Owned by cats. she/her 
Randall Munroe @xkcd.com 
Bobak Ferdowsi @ferdowsi.bsky.social Spacecraft engineer
Business insider’s sexiest scientist of 2013
1553 is the best protocol, change my mind
Emily Lakdawalla 🏳️⚧️ Uranus Expert @elakdawalla.bsky.social Planetary scientist, freelance science writer and space artist, queer, ADHD, mom. Turns out it’s hard to be all those things at once. Shop at elakdawalla.Etsy.com
Dr. Tanya Harrison @tanyaofmars.bsky.social “Very Respected Science Person” -NBC News
🔴 Former science operations for NASA Mars missions
🛰️ Current space sector strategist & author advocating for Earth
🌎 Based in Ottawa but often found on a train
✨🇨🇦🏳️🌈✨
Sarah Hörst @planetdr.bsky.social Professor of planetary science at Johns Hopkins. Titan’s biggest fan. Pomeranian wrangler. Runner. Love many, trust few, always paddle your own canoe. She/her. sarahhorst.com
Planetdr.26 on signal
Celeste Labedz @celestelabedz.bsky.social environmental seismologist - doctor of glacier vibes - geoscience educator - she/her - opinions only my own - puns only my worst
Christie Rowe @keepitrheol.bsky.social Director, @nevadaseismolab
Field geologist / earthquakes
Exec Ed for Community at Seismica, a researcher-run free journal (seismica.org)
Erik Haroldson @erikharold.bsky.social Economic Geologist, Isotope Geochemist, Fluid Inclusionist, Asst Prof, CSU Sacramento, he/him
Prof Chris Jackson @seismatters.bsky.social Geoscientist | Occassionally on 📺 & 📻 talking about geoscience | I 🏃🏾♂️🚴🏾♂️ 🧗🏾♀️🎸🍺| he/him | 🏳️🌈🏳️⚧️| “Self-declared King of Geotwitter” (Palin, 2022) | Professional (East)Midlander 😎
Nick Barber 🌋 @volcannick.bsky.social Asst Professor, geoscientist, volcanophile
magma, metals, and minerals 🌋🪨🛰️Philadelphian 🦅, father, husband. he/him. www.volcannick.com
Opinions my own
Jess Phoenix 🌋 @volcanojess.com That volcanologist you saw on TV. Executive Chair of The Comedy Resistance. Ran for Congress, wrote MS. ADVENTURE, did the world's longest horse race. Podcasts, mohawks, punk rock, WFR, super into protecting democracy.
Paul Lucas @paullucas.bsky.social I have the world’s best job. I review plane and train trips and make YouTube videos for you to watch. Represented by Dialogue MGMT. @paul_winginit on Twitter. 
Jennifer Ouellette @jenlucpiquant.bsky.social I cover science and culture at Ars Technica. Former science editor, Gizmodo. Ex-vangelical. Rodeo fan. Married to @seanmcarroll, servant to two cats: Ariel and Caliban. Baltimore, MD. She/her.
Ariel Waldman @arielwaldman.com Antarctic Explorer + Filmmaker.
📺 Creator + host of LIFE UNEARTHED on PBS
🚀 NatGeo Explorer + NASA advisor
🔬 Often filming tardigrades
🔗 https://arielwaldman.com
Leidos @leidos.com Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations.
Science Friday @scifri.bsky.social Entertaining & educational conversations about science, tech, + more. Hosted by Ira Flatow and Flora Lichtman. From WNYCStudios.
Robert Mahon @bedform.org Sedimentologist, cyclist, runner, potter. Born at 348 ppm CO2. PhD UWyo, MS Idaho State, BS UMontana. PG (LA). he/him. Pro Choice. Pro DEIA. Pro Democracy. Anti-fascist. Views mine 🏳️🌈
Rebecca Williams @volcanologist.bsky.social Professor of Volcanology. Waffle about volcanoes, HigherEd, tea and occasional running. SFHEA & STEM ambassador. She/her.
Dr. Jessica Ball 🍪 @tuffcookie.bsky.social Volcanologist, scicomm-er, Magma PI, Field Fiddler. She/her. Tweets, likes, retweets do not speak for or represent past/present employers.
Mika McKinnon @mikamckinnon.bsky.social Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. Occasional rock-licker, frequent devourer of board books. 🇨🇦🇺🇸
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Jaclyn A. Siegel, PhD @jacasiegel.bsky.social Assistant Teaching Professor at Villanova University & Assistant Research Professor at UNC Charlotte’s Violence Prevention Center • Research Fellow @ the Kinsey Institute • Focused on gender, sexuality, and body image
Dr. Shannon Cofield @geoshanz.bsky.social Geological Oceanographer, PhD | Researching sediments from the deep sea to Mars | Views my own | https://linktr.ee/shannoncofield