ESA Operations @operations.esa.int From Earth orbit to deep space: sharing the excitement of real-time mission operations at the European Space Agency. Home for ESA's teams working on Planetary Defence, Space Weather, Clean Space & Space Debris.
esa.int/Operations
esa.int/Space_Safety
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Museum of Twitter @museum-of-twitter.bsky.social 15 years of saved tweets.
@tfederman.bsky.social
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.
David @puca.bsky.social Wolkenjägerblicker
Flattop Fiesta @flattopfiesta.bsky.social I like to find ships in ESA Sentinel satellite pictures
Harry Stranger @spacefromspace.com Satellite images past and present 🛰️
Building an archive of interactive declassified spy satellite images 🕵️
https://spacefromspace.com
Tube🍂Time @tubetime.bsky.social vintage computers, tubes, the MOnSter6502, cross-sectioned electronic parts, capacitors, and other detritus. coauthor of http://nostarch.com/open-circuits
Jeff Foust @jfoust.bsky.social Senior Staff Writer, SpaceNews. Tips? Email jfoust@spacenews.com or contact on Signal: jfoust.58.
OSINTtechnical @osinttechnical.bsky.social PAI enjoyer, OSINT guy @truth.bsky.social , my views/freezing cold takes are my own. Standard spiel about not endorsing retweets, likes, and comments.
H I Sutton @covertshores.bsky.social Independent Defense Analysis, Unconventional Naval Warfare, author, submarines, #OSINT, illustrations. Mostly typos
http://www.hisutton.com/
conputer dipshit @davidcrespo.bsky.social web dev + hot dad. enjoy charts, unions, conputer games, philosophy. chicago crespo.business
Dr Emma Salisbury @salisbot.bsky.social Naval Iconoclast, Military-Industrial Expert
Senior Fellow, National Security Program, Foreign Policy Research Institute
James Brown @ancient.bsky.social youtube: https://www.youtube.com/@ancientjames
email: inquiries@ancient-workshop.com
Ulrike Franke @rikefranke.eu Senior Fellow at European Council on Foreign Relations. #Drone politics PhD @ox.ac.uk. Teaches at @SciencesPo.bsky.social. Writes about all things #Germany #Defence #miltech. Podcast host at @SicherheitsPod.de & LeCollimateur
AFP News Agency @en.afp.com Top news and features from AFP's reporters around the world.
u.afp.com/socials
Bellingcat @bellingcat.com Bellingcat is a global collective uncovering facts to hold power to account. Our work is independent. Our methods are public. Our community is global.
Want to support our charity? bellingcat.com/donate
Bulletin of the Atomic Scientists @thebulletin.org The best thinking on existential threats since 1945. Nuclear risk, climate change, and disruptive technologies. We set the #DoomsdayClock. thebulletin.org
Meredith Whittaker @meredithmeredith.bsky.social President of Signal, Chief Advisor to AI Now Institute 
Andrew Jones @andrewjonesspace.bsky.social Freelance journalist mainly tracking Chinese space activities. Correspondent at SpaceNews, also bylines at Spacedotcom, IEEE Spectrum and more.
vx-underground (automated mirror) @vxundergroundre.bsky.social The largest collection of malware source code, samples, and papers on the internet.
Password: infected
(unofficial, this is a bot! Maintained by a private individual, the bot can't handle retweets or replies, support soonish)
Daniel Cuthbert @dcuthbert.bsky.social Ageing hacker, long time documentary photographer. Black Hat Review board. Now sitting on numerous government cyber security boards so I guess that means I’ve grown up right?
Phrack Zine @phrack.org since 1985
https://phrack.org
Tory Bruno @torybruno.bsky.social President and CEO United Launch Alliance @ULAlaunch, ...Rocket Scientist, Horseman, proud @calpoly alum
NASASpaceflight.com @nasaspaceflight.com Official Account of NSF. News, videos, and community for spaceflight enthusiasts since 2005.
NSF is not affiliated with NASA, initials used with permission.
Deviant Ollam ツ @deviantollam.bsky.social Philadelphian in Cascadia. Vociferous champion for Oxford commas, two spaces after a period, and ellipses. I break into buildings. 🔓
"Even if the world were ending tomorrow, I would still plant a tree." 🌲
(he/they)
SensePost @sensepost.com Work like hell,
Share all you know,
Abide by your handshake,
Have fun. - Dan Geer
Joe Tidy BBC News @joetidy.bsky.social Cyber Correspondent, BBC News. Author of Ctrl+Alt+Chaos. I cover cyber security, online safety, crypto, AI, social networks and everything 💻📱📡. Global news mainly. DMs always open for tips/ feedback.
Andy Greenberg @agreenberg.bsky.social Writer for WIRED. Author of SANDWORM. Latest book, TRACERS IN THE DARK: The Global Hunt for the Crime Lords of Cryptocurrency, out now. agreenberg@wired.com. Andy.01 on Signal.
Dreadnode @dreadnode.bsky.social Building AI systems that advance the state of offensive security | https://www.dreadnode.io/ 
Lauren Beukes @laurenbeukes.com Novelist, scriptwriter, imaginative futurist, recovering journalist. Winner of the Arthur C Clarke and the University of Johannesburg Prize. Author of The Shining Girls (now on Apple TV), Zoo City and Bridge.
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
PEØSAT @pe0sat.bsky.social | Information about Amateur Radio – Satellite experiments |
Scott Tilley @coastal8049.bsky.social Guests do not get to rearrange the furniture and then act shocked when shown the door.
T.S. Kelso @tskelso.bsky.social Operator of CelesTrak, the world's first source for orbital element sets and related software and educational materials.
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
Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
@azhardesai.bsky.social @azhardesai.bsky.social 
Institute for the Study of War @thestudyofwar.bsky.social ISW is a policy research organization focused on U.S. national security. Email: press@understandingwar.org. For more: https://linktr.ee/understandingwar
ProPublica @propublica.org Investigative journalism in the public interest. Headlines and (sometimes literal) receipts.
propublica.org
Andrew Fraser @arfness.bsky.social Opinions. Comms. OSINT. Analysis. Marketing strat. Some snark. Radical apanthropist.
NB: It's probably more complicated than you think - whatever it is.
European Commission @ec.europa.eu News and information from the European Commission. Social media and data protection policy: http://europa.eu/!MnfFmT
Greg @gregdavill.bsky.social Electronics engineer. RISC-V ASICs at IQonIC Works 🧙♂️ (He/Him)
I also take macro photos of electronics
Breaking Taps @breakingtaps.com Material science, microfab, microscopy, machining. Mostly :)
Alex Wellerstein @wellerstein.bsky.social Nuclear historian. Prof@Stevens Institute of Technology. Visiting researcher@Nuclear Knowledges, Sciences Po, Paris. Senior Fellow@thebulletin.org. Author: THE MOST AWFUL RESPONSIBILITY (2025). Creator of NUKEMAP. Blogging @ https://doomsdaymachines.net.
Linus Tech Tips @linusmediagroup.com The official Bluesky of the Linus Tech Tips YouTube channel.
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
TechCrunch @techcrunch.com Technology news and analysis with a focus on founders and startup teams.
Got a tip? http://techcrunch.com/tips
Brad Fitzpatrick @bradfitz.com I do computers. Married to @radkat.fitzpat.com. Three kids. Xoogler.
Go (#golang) team 2010~2020. Made LiveJournal, OpenID, memcached. Currently at @Tailscale.com making WireGuard easy.
Seattle, WA // Bainbridge
Bryan Cantrill @bcantrill.bsky.social Co-founder and CTO of Oxide Computer Company. According to Field of Schemes, "tech exec and Oakland A's fan" -- but more of an Oakland Ballers fan now.
hforsten @hforsten.com Electrical engineer. RF electronics, IC design, radars, FPGA, programming. hforsten.com
Adam Shostack @adamshostack.bsky.social Threat modeling. BH Review Board. Affiliate Professor, UW. Fixed autorun. Helped create CVE.
Not sure why we're building graphs on yet another (effectively) centralized system. https://infosec.exchange/@adamshostack
Mark Riedl @markriedl.bsky.social AI for storytelling, games, explainability, safety, ethics. Professor at Georgia Tech. Director of ML Center at GT. Time travel expert. Geek. Dad. he/him
Led By Donkeys @ledbydonkeys.org Art, Activism and Accountability
https://linktr.ee/ledbydonkeys?utm_source=linktree_admin_share
Dean Wingrin @deanwingrin.bsky.social Aviation and defense journalist, author, photographer, defenceWeb correspondent and general raconteur.
Dr Chris Bridges @chrisbridges.bsky.social Academic at Surrey Space Centre, dad, guitarist, M0IEB
📝 Paper List: https://scholar.google.gr/citations?user=iySVX8MAAAAJ&hl=en
🤌 Uni. Paper Profile: https://openresearch.surrey.ac.uk/esploro/profile/overview?institution=44SUR_INST
Oxide Computer Company @oxide.computer The cloud you own. https://oxide.computer/bio
@marcoslaviero.bsky.social @marcoslaviero.bsky.social 
Liam Beeton @liambeeton.com I'm a tinkerer, a lifelong learner and a collector of hobbies.
Find all my stuff at https://liambeeton.com.
ThinkstCanary @thinkstcanary.canary.tools Know. When it matters.
https://canary.tools- D Dan Luu @danluu.com danluu.com / www.patreon.com/danluu/
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Charl P. Botha @charlbotha.com Enjoyer of programming, data visualization / science / engineering, ML / AI, Emacs (org, evil), PKM, running and other humans.
https://charlbotha.com/
P.S. my extremely personal blog (100s of posts, more than 20 years of life) is at https://cpbotha.net
jiska @naehrdine.bsky.social ɿɘɘniϱnɘ ɘƨɿɘvɘɿ
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
@shifttymike.bsky.social @shifttymike.bsky.social 
the grugq @thegrugq.bsky.social 
Chris @brompwnie.bsky.social Likes to hack things.
GitHub.com/brompwnie
daniel:// stenberg:// @daniel.haxx.se I write curl. I don't know anything. I am @bagder@mastodon.social
My mastodon posts are mirrored to Blusky here: https://bsky.app/profile/bagder.mastodon.social.ap.brid.gy
Weekly email at https://lists.haxx.se/listinfo/daniel
Dominic White @singe.bsky.social Hacker at Orange Cyberdefense's SensePost Team
https://hello.singe.za.net/
Go @golang.org Go will make you love programming again. We promise.
https://go.dev/
stacksmashing @stacksmashing.bsky.social Security researcher with a focus on hardware & firmware. I occasionally publish stuff on YouTube. Co-founder of
hextree.io. Contact: contact@stacksmashing.net
D̒͂̕ᵈăᵃn̕ᶰ Ť̾̾̓͐͒͠ᵗe͗̑́̋̂́͡ᵉn̅ᶰtᵗl̀̓͘ᶫe̓̒̂̚ᵉrʳ @viss.hax.lol Viss from twitter and mastodon.social.
startup founder, hotsauce guy, public speaker
eater of pineapple on pizza, listener of ska, flooper of quads
internet grandpa, former sysadmin turned infosec
https://phobos.io/rtg/
https://ravenholmspices.etsy.com
Tailscale @tailscale.com Your private programmable network.
💥 leonjza @leonjza.bsky.social [ 'cto @sensepost.com', '@orangecyberdef', 'caffeine fueled', '(╯°□°)╯︵ ┻━┻', 'security guy', 'metalhead', 'i saw your password', 'KOOBo+KXleKAv+KXlSnjgaM=' ]
DilDog 🅅 @dildog.l0pht.com Tech Dysangelist
cDc/hack.xxx/Veilid
Support Veilid! Badge: 🅅 www.veilid.com
Merch at: @hack.xxx
he/him/"hey buddy"
KiCad EDA @kicad.org The world's most popular circuit design suite. https://www.kicad.org
Nick Hedley @nickhedley.bsky.social Editor of The Progress Playbook: https://theprogressplaybook.com
We focus on proven climate and sustainable development solutions.
Email me for collaboration opportunities: nick.hedley@theprogressplaybook.com
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
arturo182 @arturo182.bsky.social HW & SW
Founder of @solder.party
he/him
Hypn @hypn.bsky.social #Hackers #HackThePlanet
Haroon Meer @haroonmeer.canary.love Security Geek. We build Thinkst Canary - https://canary.tools
@halvarflake.bsky.social @halvarflake.bsky.social 
Randall Munroe @xkcd.com