James Kuszmaul @james4mv.bsky.social Candidate for City Council in Mountain View, CA
Pedestrian, cyclist, YIMBY, #NoKings
https://james4mv.com
barbylon @barbylon.bsky.social Principal Instigator. Category 1 mind, Category 4 attitude. 🧪🔭🚀
Jason Hutt @jthutt.bsky.social NASA Human Spaceflight for 25+ years. Displaced Philadelphian. Go Birds! Amateur photographer. Occasional sci-fi writer.
Sent people to the Moon!
Go then. There are other worlds than these.
https://otherworlds.picfair.com/
@pamelafox.bsky.social @pamelafox.bsky.social 
PyBay @pybay.bsky.social PyBay is the San Francisco Bay Area annual regional Python Conference! Check us out at pybay.org
Sharon Monica @sharonmonica.bsky.social Personal account. Retired Aerospace Systems Engineer. Hampton U., UVA, ODU and Silver Life Member 💗💚
Mike Feher @saxmike71.bsky.social Software engineer at NASA | saxophone + electric guitar | unapologetic flirt | progressive/liberal/Democrat/atheist | My tongue is always in cheek. | All posts/views mine, but you can share. You may know me from other places, but if not, you should. 😊
Chris Holdgraf @choldgraf.com Executive Director of @2i2c.org
🪐 Jupyter Project distinguished contributor
👬 mybinder.org and hub.jupyter.org team
📚 jupyterbook.org mystmd.org and executablebooks.org
open communities 🙌
open infrastructure 💻
open science 🧪
Ethan Siegel @startswithabang.bsky.social Cosmologist, science communicator, author, speaker, and longtime writer of Starts With A Bang.
Not the next Carl Sagan; the first Ethan Siegel.
IFPTE @ifpte.bsky.social A labor union advocating for workers in professional & technical occupations
www.ifpte.org
Jeremy Frank @phalcon3.bsky.social I'm just this guy, you know?
🪶🚀🧑🍳📚🍺📘🕊️🏳️⚧️🏳️🌈 🥄🕊️
Chris Teubert @teubert.bsky.social Diagnostics and Prognostics lead @ NASA Ames; views are my own
Mark SubbaRao @marksubbarao.bsky.social NASA's Scientific Visualization Studio Lead
Data Viz . Climate . Astronomy . Food
I'll try and keep my opinions to myself but when I inevitably slip up please remember that they are my own.
https://marksubbarao.science/
American Astronomical Society (AAS) @aas.org The mission of the American Astronomical Society is to enhance and share humanity’s scientific understanding of the universe as a diverse and inclusive astronomical community.
aas.org
Scott Sutherland @scotttwnsciwriter.bsky.social Neutral Good Science Writer covering space and astronomy for The Weather Network. 🇨🇦
https://www.theweathernetwork.com/ca/news/category/space
100% Nerd since 1977: Star Wars, Star Trek, The Expanse, Dark Matter, LEGO, D&D, NASA
(he/him)
Binghamton Center of Complex Systems (CoCo) @binghamtoncoco.bsky.social https://coco.binghamton.edu/
Tim Fernholz @timfernholz.com journalist, author, internet participant
writing and reporting on space, AI, and public policy
I always want to hear your tips and ideas on signal: tim_fernholz.21
timfernholz.substack.com | www.timfernholz.com
Oakland, CA
marsokod.bsky.social @marsokod.bsky.social Space Engineer at Loft Orbital, co-founder @SpaceUp_FR , Space and OSS enthusiast. Supaero and Michigan alumni
JP @yatpay.bsky.social Space, F1, games, photos. Former Otakon AMV team. Software/Aerospace engineer working on Artemis, returning humans to the Moon. I make NASA human spaceflight history podcast The Space Above Us @thespaceabove.us (pfp by @starberrydream.bsky.social)
Chris Binz @binz.bsky.social Space technologist/curmudgeon
Flight Software Workshop @flightsoftware.org 2026 Workshop on Spacecraft Flight Software - Hosted at Johns Hopkins University Applied Physics Laboratory https://flightsoftware.org
Casey Dreier @caseydreier.bsky.social Chief of Space Policy at The Planetary Society. Host of Planetary Radio: Space Policy Edition. planetary.org
Andrew @nomadd.bsky.social HALO Life Support Systems Engineer - NASA Artemis
Building the future.
Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social Space archaeologist | Global Expert Group for Sustainable Lunar Activity | Asteroid 551014 Gorman | Dr Space Junk vs the Universe. https://mitpress.mit.edu/9780262539654/dr-space-junk-vs-the-universe/ | Blog https://zoharesque.blogspot.com/
Rep. George Whitesides @georgewhitesides.bsky.social #CA27 Congressman. Father of two, former NASA Chief of Staff & Virgin Galactic CEO, and Cofounder of Megafire Action.
Claire @isolinearchip.bsky.social Please accept this sandwich as a gesture of solidarity. Cleveland. Any pronouns. Autistic
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
SpaceNews @spacenewsinc.bsky.social Established in 1989, SpaceNews is the most trusted and comprehensive source of news and analysis of the companies, agencies, technologies and trends shaping the global space industry.
Derek Newsome @derek.space Spaceflight Photographer
Fighting to keep the dream alive.
derek.space
derekspace.com
He/Him
John Skiles Skinner @skiles.blue I work on @securedrop.org
Former fed at 18F "deleted" by DOGE
🔗 https://skiles.blue/
Nujoud Fahoum Merancy @nujoud.bsky.social NASA Deputy Associate Administrator, Exploration Strategy & Architecture. #DucatiScrambler riding, mom of 2, Palestinian-American... spaceships are the easy part.
Jeff Foust @jfoust.bsky.social Senior Staff Writer, SpaceNews. Tips? Email jfoust@spacenews.com or contact on Signal: jfoust.58.
Interkosmos @intercosmos.bsky.social Reconnaisance by key hole. Observer. Aerospace, Astronomy, Defense, International Affair, and Nuclear (so far).- S SpacePolicyOnline @spacepolicyonline.bsky.social SpacePolicyOnline.com is your first stop for news, information and analysis about civil, commercial, and national security space programs. Marcia Smith is the editor.
Ed Rivera-Valentín @planettreky.bsky.social Planetary Scientist & Trekker of Planets.
#LatinxInSTEM 🇵🇷 #LGBTQinSTEM 🏳️🌈.
My posts, my views.
Chase Million @millionconcepts.com CEO of Million Concepts. Building software and data systems to reduce space mission risk, increase scientific return, and accelerate discovery.
Astronomer and planetary scientist. Software engineer. Project manager. Writer. Magician. Dog person.
Scott LaFoy @wslafoy.bsky.social Open Source Analysis of ballistic missiles, nuclear weapons, BMD, DPRK, & PRC.
Vice President of Nuclear and Technology Security Programs, Exiger.
Making podcasts over at https://www.armscontrolwonk.com/
All opinions my own.
Elisabeth Bik @elisabethbik.bsky.social Science integrity consultant and crowdfunded volunteer, PhD.
Ex-Stanford University. Maddox Prize/Einstein F Award winner
NL/USA/SFO.
#ImageForensics
@MicrobiomDigest on X.
Blog: ScienceIntegrityDigest.com
Support me: https://www.patreon.com/elisabethbik
Marcel Haas 🟥 @harcel.bsky.social Data scientist in population health @ Leiden University Medical Center. Former astrophysicist: extronomer! Beer sommelier. Pythonista. Aspiring Bayesian. Dad. Puzzle solver and Go/Baduk player.
Brian Swift @bswift.bsky.social Whatevs... JunoCam raw images ain't gonna process themsleves. Intel • fmr NASA JPL Radar Science SRTM • CDC Cybers anyone? • Santa Cruz (California)
Angelo Vermeulen @angelovermeulen.bsky.social Space biologist • Complex systems engineer • Computational designer • Artist • Analog astronaut
Jelle de Plaa @deplaa.net Research software engineer - SRON Space - Astrophysics - Open Science - Photography
The Spaceflight Geek @thespaceflightgeek.bsky.social I want to report and discuss with you everything what happen in the world of spaceflight of the government organizations like NASA, CNSA, ESA, JAXA or Roscosmos but as well about private companies like SpaceX, RocketLab, etc. Follow me for rocket fun!
Marco Langbroek @marcolangbroek.bsky.social Lecturer in optical Space Situational Awareness at Delft Technical University, faculty of Aerospace. Spy sats, missiles, meteorites, asteroids. Asteroid (183294). Lapsed Archaeologist (PhD). Rowing. CFS. Opinions my own.
blog: http://sattrackcam.blogspot.c
Raunak S @ronindune.bsky.social Remote Sensing/GeoInformatics guy. Formerly of ISRO. PhD. Research Scholar, University of Houston. (he/him)
Josef Aschbacher @josefaschbacher.esa.int The Director General of the European Space Agency
Molly White @molly.wiki writes citationneeded.news • runs @web3isgoinggreat.com and @influence.citationneeded.news • tech researcher and cryptocurrency industry critic • software engineer • wikipedian
support my work: citationneeded.news/signup
links: mollywhite.net/linktree
💗💜💙
GitHub @github.com The AI-powered developer platform to build, scale, and deliver secure software.
Jonathan McDowell @planet4589.bsky.social Astrophysicist
Support the work of Jonathan's Space Report:
https://www.gofundme.com/f/fund-jonathans-space-report-library-transition
Ross Sharp @aviationhistory.bsky.social Museum curator, airshow organiser, aircraft restorer. Principal at https://aviationhistory.uk Please visit https://www.alamy.com/portfolio/rosssharp (aviation & more) Also, see https://bsky.app/profile/blueskyimages.bsky.social
Rafael Mentges @mentges.bsky.social Space Economist. Interested in European Integration, industrial policy, innovation, strategic sovereignty, and of course things like launchers, SatCom, EO ...
I have another profile focused more on my old interests: Macro, monetary policy and banking.
Andrew 🚀🛰️ @cosmic-andrew1.bsky.social Space, Rockets, Astrophysics, Nukes, Politics
Manlio De Domenico @manlius.bsky.social Emergence, Networks & Complexity | Collective Behavior(s) from Cells to Societies 🧬🦠🧠🌇
Prof. @UniPadova, Galileo's University | Lab: @comunelab.bsky.social | Web: https://linktr.ee/manlius
Thoughts at manlius.substack.com
Graham Warwick @theworacle.bsky.social Technology editor at Aviation Week, lifelong aeroplane enthusiast and recovering aeronautical engineer, sworn to eradicate the word "aircrafts". My musings on aircraft design and aerospace news.
Kyle Kelley @kylekelley.bsky.social Principal Engineer @anacondainc.bsky.social, nteract lead, maker of document engines and runtimes 🚲 🏫 🚶🏻🌲🏙️ 🌊
Nicolai von Neudeck 🇺🇦 @vonneudeck.com General Purpose Nerd
Consultant for SRE, Resilience Engineering, Cultural Anthropology, Housing, Populism, Antisemitism
How things fail and how anything ever worked at all
📍Berlin/Zuid-Limburg/Penn-ar-Bed/Aude
Signal: nicolai.01
Hillel is on Social Media Break @hillelwayne.com Formal methods, software history, chocolatiering. DMs open. *Logic for Programmers* now out! https://logicforprogrammers.com
Newsletter: https://buttondown.email/hillelwayne/
Sarah Butt @sarahbutt.bsky.social Systems thinker. Student of complexity. “Like a moth to the incident flame”. Normally accompanied by 🦮 (she/her)
Lari Hotari @lhotari.bsky.social OSS contributor https://github.com/lhotari, Distributed Systems Engineer. Principal Engineer at StreamNative. Apache Pulsar PMC member. Apache Software Foundation member. 🇫🇮🇨🇦🇪🇪🇺🇦
@usrbinkat.io @usrbinkat.io 🧙♀️ Open Sourceress
🚀 Ms. (f)Rizzle @Cisco
🏳️⚧️ Blame for Oops & Ops my own
🤗 Seize the means of computing
👩💻 K8s/AWS/Azure Platform Engineer
📖 https://blog.usrbinkat.io/en/page/about
🍿Watching Dystopia IRL
🧠 Neuro Spicy Autist
📍 Sacramento ☀
ryan kitchens @this-hits-home.kitchen 100% human. resilience engineering. ex-nflx, blizzard 💙
April Ayres-Griffiths @undefinedopco.de Platform Engineer, resilience engineering nerd, poet, writer, ERG lead. Brains, disability, retro-tech, incidents, engineering. trans/non-binary. MCAS. Autistic and ADHD. Opinions my own.
turtleSpaces.org co-dev
See feeds in profile
Stéphane De Wolf 🛩️ @stephanedwf.bsky.social Started flying gliders and freediving a while back (still learning). Human Factors & System Safety @Lund University / Safety & Regulatory Affairs Manager @IBAC.org / Vice/Acting-Chair of the Safety Management Panel @ICAO.int. Maybe a bit of a safety nerd?
John Allspaw @allspaw.bsky.social Cofounder, @AdaptiveCLabs, “the NTSB of Tech” bringing Resilience Engineering to industry. he/him. Won’t speak on all-male panels, and #blacklivesmatter.
Chad Todd @ctoddkicker1.bsky.social JC Believer, Husband, Father, Daughter Soccer Dad, MSc Human Factors & Systems Safety-Lund Univ, MBA
@resilienceinsoftware.org @resilienceinsoftware.org 
Lorin Hochstein @norootcause.surfingcomplexity.com Student of complex systems failures, resilience engineering, cognitive systems engineering. Will talk your ear off about @resilienceinsoftware.org
Skeptical Science @skepticalscience.bsky.social Non-profit science education organization building public resilience against climate misinformation. More at http://sks.to/welcome
Tab Combs @drtcombs.bsky.social Transport-Equity-Resilience Planning academic
Venerable Road User & Villagist
She/hers. Occasional outbursts about dogs, kids, Davidson hoops, severe weather, & gardening. My opinions are mine.
Blocking bots and bot-adjacents
University of Miami Climate Resilience Institute @miamiresilience.bsky.social The Climate Resilience Institute supports interdisciplinary, problem-driven research and education to train the next generation and deliver solutions to climate change impacts and other environmental stressors. Founded in 2022.
Space Weather Watch @spacewxwatch.bsky.social Aurora forecasts and solar physics updates by a space weather physicist working at NASA. Opinions may not represent official gov’t forecasts.
https://linktr.ee/spacewxwatch
California Academy of Sciences @calacademy.bsky.social Natural history museum, research institute, aquarium, planetarium, rainforest, & so much more — all under one living roof.
Altmetric @altmetric.com We measure the attention that research outputs receive from policy documents, mainstream news outlets, Wikipedia, social media and online reference managers. We detect sentiment of Bluesky/X posts.
Come for the attention to research. Stay for the memes.
Taylor Bell @taylorbell275.bsky.social ESA/AURA Astronomer at STScI, working on exoplanet atmospheric characterization, MIRI, and time-series observations. Posts are my own and do not necessarily reflect the views of STScI, ESA, or AURA.
Passionate about hiking, camping, and canoeing.
He/him
Joseph Gruber @josephgruber.com Satellite ground software/mission ops software engineer. Alum of AWS Ground Station, Blue Origin, NASA Goddard. and the GWOT.
Occasional weather, Python dev, AWS DevOps, space, aviation, and the Phillies 🔔.
Opinions my own.
📍 Colorado
austin @aparker.io the only thing worse than my code are my jokes
governance @opentelemetry.io
director of ai strategy @honeycomb.io
av by @extinctinks.net
Liam 🌁 @wiscott.bsky.social 
@vsamsondc.bsky.social @vsamsondc.bsky.social Hates the humidity, loves cats. Works on space policy for @swfoundation.bsky.social, but opinions are mine, not my organization's. She/her
Secure World Foundation @swfoundation.bsky.social Promoting Cooperative Solutions for Space Sustainability
Follows, re-tweets, and mentions are not legal advice or endorsements.
Swapna Krishna @swapnakrishna.com space reporter. covering Artemis II for NatGeo.
occasionally: national geographic, engadget, fast company, wired, science friday, npr. links: http://bio.site/skrishna
also: Star Trek, Star Wars, knitting, books, parenting
Andrew Mann @amann.bsky.social Associate professor of Physics and Astronomy at UNC Chapel Hill studying young exoplanets and stars. Dad to one human and one cat. 🏳️🌈💗💜. Carrboro Citizen. http://andrewwmann.com
@sf-emergency.sf.gov @sf-emergency.sf.gov 
Anshul Kundaje @anshulkundaje.bsky.social Genomics, Machine Learning, Statistics, Big Data and Football (Soccer, GGMU)
Kyle Niemeyer, PhD @kyleniemeyer.bsky.social Associate Professor of Mechanical Engineering at Oregon State University (he/him). Research in combustion and fluid dynamics, numerical methods and HPC. Open science and open source software advocate. Big SF/F reader and DIY+woodworking enthusiast.
Cory Simon @corymsimon.bsky.social applying math, computation, and machine learning to problems in chemical engineering | associate professor, Oregon State University | views mine
https://simonensemble.github.io/
Oregon State University College of Engineering @engineering.oregonstate.edu Oregon State College of Engineering engineering.oregonstate.edu
Engineered here for out there.
Oregon State University CEOAS @osuceoas.bsky.social Oregon State University's College of Earth, Ocean, and Atmospheric Sciences - our scientists and students are on the leading edge of discovery, from the depths of the ocean to remote mountain peaks. Come explore.
Header photo by Pat Kight.
Marc Berman @asmmarcberman.bsky.social CA Assemblymember, proudly representing #AD23 in San Mateo & Santa Clara Counties
Derek Dalle @ddalle.bsky.social NASA Ames, Artemis, hypersonics, two kids, etc...
Kyle Kabasares @kylekabasares.bsky.social Ex-Data Scientist for the Bay Area Environmental Research Institute at NASA Ames | Physics PhD | YouTube Partner | Fil-Am 🇵🇭🇺🇸
YouTube: https://youtube.com/@KyleKabasares_PhD
Website: https://www.kylekabasares.com
Ben Lew @astrobenlew.bsky.social NASA Ames /BAERI postdoc, working on brown dwarf and exoplanet atmospheres 
Keiko @keiko-geo.bsky.social PhD; Research Scientist @NASA Ames; views my own; https://www.linkedin.com/in/keiko-nomura-0231891/
Alejandro S. Borlaff @asborlaff.bsky.social NASA Space Scientist at Ames Research Center. Astrofísico. Desarrollando telescopios espaciales y protegiendo el Cielo Oscuro. cps.iau.org. Views are my own.
gully @gully.bsky.social interpretable machine learning for atmospheric and astronomical data analysis, near-IR spectra, climate tech, stars & planets; bikes, Austin, diving off bridges into the ocean.
BluFly 🛩 @blufly.media A humans-in-the-loop feed for the aviation community. If made by people and flying between the surface and the Kármán Line you'll find it on BluFly. Read the current issue at https://blufly.media/2026/08. (📸 Andy Symons | BMFA)
Gene J. Mikulka @genejm1017.bsky.social Founded the Talking Space Podcast in 2009.
Immersed in spaceflight since the Apollo days, Space Advocate and lovebird Dad. All Opinions are mine alone and don't reflect the position of the podcast. https://www.talkingspaceonline.com
Steve VanderLeest @svleest.bsky.social Author, computer engineer, Jesus follower.
Safety-critical SW, DO-178C, ARINC 653, DO-297, AC 20-193 multicore interference mitigation
Boeing Technical Fellow
DASC 2025 General Chair.
Blog: https://faithfultechnology.blogspot.com
Gaël @gaellebris.bsky.social Aero & civil engineer. Planner. | VP & Tech Fellow at WSP. Groupe ADP alumnus. | Skeets reflect personal opinion. Following, likes & reskeets ≠ endorsements. | Talk about #airports, #aviation, #engineering, #infrastructure, #mobility & #transportation 🚁🛩️✈️🚀
Julia Bergeron @juliabergeronnsf.bsky.social Chronicler and 🍪 baker
Contributor for NSF
Opinions are my own
Santa Clara Valley Transportation Authority @vta.org Solutions that Move You in Santa Clara County - transit, mobility, planning & congestion management.