Andrea Zonca @andreazonca
High Performance Computing, Kubernetes, Python, Cosmology @Planck, now data pipelines for @simonsobs, Cloud @jetstream_cloud. Staff @SDSC_UCSD & consultant. zonca.dev San Diego, CA Joined June 2009-
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Call for student volunteers! SDSC Summer Institute 2026 needs UCSD undergrads to help with HPC/data science training. Earn CCR credit on your transcript. Basic Linux + Python skills enough. Apply: ucsd.joinhandshake.com/public/jobs/11… Details: zonca.dev/posts/2026-06-…
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New guide: SDSC's cyberinfrastructure for AI research — Expanse, Voyager, Cosmos, NRP, and NDP. Step-by-step access for each platform. `zonca.dev/posts/2026-05-…` #hpc #ai #sdsc #cyberinfrastructure
healpy 1.20.0b1 beta: harmonic_ud_grade for artifact-safe map downgrading via spherical harmonics zonca.dev/posts/2026-05-… #healpy #HEALPix #CMB
PySM 3.4.5: new HalfDome TSZ model (tsz4), scipy < 1.15 pin removed, Python 3.9 dropped. Upgrade: pip install --upgrade pysm3 zonca.dev/posts/2026-05-… github.com/galsci/pysm #PySM #CMB
@_mohansolo Quickly?? That is an understatement. 20 minutes without even coding and flash was gone
Running a Python workshop? You might not need JupyterHub 🐍 JupyterLite runs Python in the browser — no server, no setup. NumPy, SciPy, Pandas, scikit-learn all work via WebAssembly 🧪 zonca.github.io/jupyterlite-ca… zonca.dev/posts/2026-05-… #Python #Jupyter
@CapitalOne credit wise notifications are too dumb, and the only way to disabling them is to cancelling the account...so bye.
New tutorial: Deploy JupyterHub on OpenStack Magnum with OpenTofu. Kubernetes + HTTPS + custom subdomain — fully automated. zonca.dev/posts/2026-04-… #Kubernetes #OpenStack #JupyterHub
Applications close TOMORROW for SDSC HPC and Data Science Summer Institute! 5 days hands-on: Deep Learning, GPU, MPI/OpenMP. Aug 3-7 San Diego. Limited to 45. Full agenda: github.com/sdsc/sdsc-summ… Register: sdsc.edu/events/202608-… #HPC #DataScience #AI
Just published: a notebook comparing SPT-3G D1 CMB power spectra with Planck 2018. Shows where primary acoustic peaks give way to secondary anisotropies at high multipoles. Created with a simple prompt to Sonnet 4.6.
Andrea Zonca retweeted
2026 New Horizons in Physics Prize! Congratulations Professor Colin Hill ! "For advances in cosmic microwave background and supernovae cosmology" "...pushed analyses of CMB data beyond previous limits, producing the most precise tests to date..." breakthroughprize.org/News/98
Pretty disappointed with Codex for CLI use lately. The 5-hour window now gets burned in about 1 hour of real work. A month or two ago, I almost never hit it. I’ve been using Gemini CLI more, and Gemini 3 Flash has been impressively good with fairly complex problems.
@SmitheryDotAI I am getting {"error":"auth_required","message":"OAuth discovery failed for this server"} for all my MCP servers
Andrea Zonca retweeted
Applications are open for #FlatironCCA's 2026 CMB Summer School, where participants will learn core concepts and practical tools for CMB data analysis and simulations. Deadline is April 4: simonsfoundation.org/event/cmb-summ… #astrophysics #science
I wrote a tutorial on running your own AI chat on Jetstream2. Jetstream2 is a research cloud, and ACCESS is the program that helps U.S. researchers use it. I show how to start a GPU VM, run `llama.cpp`, and chat through a web UI. zonca.dev/posts/2026-03-…
Confluence is still a miserable place to keep useful content, so here’s a better escape route: export pages and attachments straight to Markdown with `confluence-cli` via the API. zonca.dev/posts/2026-03-…
I built sphinxnotebookgist, a Sphinx extension for keeping Jupyter notebooks clean in git while rendering executed outputs in docs. It verifies source cells before using a remote executed notebook. zonca.dev/posts/2026-03-…
Simplify the maintenance of a Docker Image for #Jupyterhub using repo2docker and #Github actions: zonca.dev/posts/2026-03-… Notice that inside Github action I am using Kind to actually deploy Zero to JupyterHub in #Kubernetes and test the image inside it.
As an alternative to deploy `nbgrader` on Zero-to-JupyterHub using `ngshare`, on Jetstream 2 we can also rely on the shared filesystem service provided by Openstack Manila: zonca.dev/posts/2026-03-…
Andrea Zonca retweeted
Gemini 3.1 Pro is ramping up in Google Antigravity, starting with Google AI Ultra and Pro users! This model brings our most advanced reasoning and long horizon planning to your development workflow.
Niko @NikoSarcevic
17K Followers 7K Following cosmologist @DukePhysics @LSSTDESC @NASARoman @theDESurvey | prev. @XENONexperiment | opinions mine 🇭🇷🇷🇸🇦🇹🇮🇹🇩🇪🇬🇧🇺🇸🇪🇺🏳️🌈
Marius Millea @cosmic_mar
1K Followers 1K Following RIP astronomy / EDM burner Twitter 2012-2022 or so, truly gonna miss some of you, catch me on the crocheting site
Daniel Green @nu_phases
10K Followers 551 Following Associate Professor @UCSanDiego, Cosmologist and Particle Theorist
Silvia Galli @cosmosgalli
990 Followers 198 Following Cosmologist at @astroIAP-Paris exploring the universe with @planck and the @SPTelescope. PI of the ERC consolidator grant #NEUCosmoS https://t.co/Z9M678BKal
CLASS Project @CLASS_telescope
583 Followers 435 Following Cosmology Large Angular Scale Surveyor | Measuring the Cosmic Microwave Background @JohnsHopkins | Discovering when the universe first lit up #NSFfunded
Eve Vavagiakis, PhD @EveVavagiakis
6K Followers 3K Following Asst Prof @DukeU exploring the cosmos w/@ACT_Pol @CCATObservatory @SimonsObs @cmb_s4 & our planet by foot and bike. Author @MITKidsPress. FLT End-to-Ender #556
Karin Sandstrom @karinsandstrom
3K Followers 1K Following Astronomer. Associate Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff. she/her
Ryan Abernathey @rabernat
7K Followers 2K Following Scientist and Startup Founder Co-founder and CEO @EarthmoverHQ @pangeo_data steering council member ex-Professor @columbia @lamontEarth
Maximiliano Silva-Fea... @msilvafeaver
165 Followers 385 Following Physicists studying the Cosmic Microwave Background and searching for Axions. PhD @ucsdastro now Postdoc @yalephysics @yalewrightlab 🏳️🌈🇺🇸
QuijoteCMB @QuijoteCMB
289 Followers 44 Following Two telescopes and three instruments dedicated to measure the polarization of the microwave sky in the frequency range 11-40 GHz and at angular scales of 1°.
Sarah Kendrew @sarahkendrew
16K Followers 3K Following Astronomer with the European Space Agency. Leading the MIRI team for JWST at the Space Telescope Science Institute in Baltimore. Opinions are my own 🇧🇪🇬🇧
Peter Wang 🦋 @pwang
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Chris Holdgraf @choldgraf
8K Followers 1K Following Executive Director @2i2c_org Executive Council @ProjectJupyter co-lead JupyterHub and JupyterBook open communities 🙌 open infrastructure 💻 open science 🧪
Simons Observatory @SimonsObs
2K Followers 247 Following The official account of the Simons Observatory.
Andrew Jaffe @defjaf
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Jón Emil Guðmundsso... @jegudmunds
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Todd Gamblin / @tgamb... @tgamblin
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OpenTopography @OpenTopography
10K Followers 582 Following Open access to high-resolution, Earth science-oriented topography data, and related tools & resources. US NSF supported. #lidar
Marco Bonici @marcobonici
670 Followers 694 Following PostDoc at Waterloo Center for Astrophysics. Studying the Large Scale Structure of the Universe. JuliaLang enthusiast. Improv Theatre and StandUp Comedy lover.
Suraj Thadarai @surajthadarai12
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Genevieve Hana @GenevieveHana
396 Followers 3K Following Art, travel, and deep talks fuel my soul ✈️🖌️
Leela Goud @LeelaGoudv5
358 Followers 741 Following True love is not about finding a perfect person, but about learning to see the imperfect person with perfect eyes.
Liora @SweetElena___
527 Followers 615 Following 🌿 Healthcare Advocate | 📚 Lifelong Learner | Medical Industry Professional | 💖 Women Empowerment | ✈️ Travel and Adventure Lover | 🌱 Nature Lover
Jatin Kashyap @JayKayNJIT
40 Followers 154 Following Atomic Models of 2D/Bio-Materials | #1stGen Scientist | #Quantum Compute | #Neuromorphic Intelligence | #CompChem #DrugDesign #MaterialsScience | #PiNN #DFT #MD
vsp @vsptech
0 Followers 46 Following
Tijmen de Haan @tijm6140
65 Followers 173 Following Astrophysicist & cosmologist. I work on experimental physics, using tools from statistics and electrical engineering.
Giulia Palermo @palermo_lab
4K Followers 2K Following Giulia Palermo Lab at the University of California, Riverside. Biophysicist passionate about Science & Art!
Yuri @Okrasee
1 Followers 89 Following
Liesl McConchie @Liesl4CleanAir
3K Followers 836 Following Clean Air for Schools. Interim Executive Director at Corsi-Rosenthal Foundation. (@LieslMcConchie for math, 🧠, education content)
Pepe 强大 @pepeperez33333
49 Followers 640 Following Científicamente correcto RT = Interesante para leer. Me gusta = Para enseñar a mis hijas.
Colin Parent @ColinParent
11K Followers 12K Following Private Citizen living in @LaMesaCA, CEO & General Counsel for @CirculateSD. Former Vice Mayor of @LaMesaCA, @California_HCD, @JerryBrownGov, @DLA_Piper
Utwegir @Utwegir28982
9 Followers 201 Following
Esieasam @Esieasam631
8 Followers 190 Following
Cyshoa @Cyshoa348ic7g
42 Followers 2K Following
CoCalc by SageMath, I... @cocalc_com
2K Followers 4K Following Collaborate in real time while using Jupyter, Linux, LaTeX, and more.
Mpephey @MpepheyLqq
48 Followers 4K Following
Adithya @_akameswa
5 Followers 212 Following
Syed Mustafa Ahmed @SMustafaAhmad
154 Followers 162 Following
Miret-Roig @USTC1958
53 Followers 6K Following
DESI Survey @desisurvey
4K Followers 164 Following The DESI Survey will measure the properties of Dark Energy using a survey of 30+ million galaxy redshifts.
Shabbir Shaikh @ShabbirS91
54 Followers 470 Following Cosmology postdoc @ASU, curious about many things, especially physics, math and their history.
Adream @Adream729210
25 Followers 3K Following
Kyle Griffin @kgriffin0
944 Followers 2K Following Meteorologist, homebrewer, FMFC, CFC, US Soccer fan. Data data data. PhD in WI (@UW_AOS) via NY (@UAlbanyDAES) from VA. @kgriffin on the other blue side
Dilemma @Dilemma490028
35 Followers 4K Following
deepali agarwal @deepaliaga58003
1 Followers 31 Following
Sergey Quantum 📡�... @modqft
68 Followers 881 Following PhD in Theoretical Physics. Researcher in machine learning for high-energy physics (ex LHCb member). Interested in #DeSci and #cypherpunk.
Susanna Azzoni @AzzoniSusanna
58 Followers 126 Following Cosmologist and Astrophysicist @PrincetonPhysics.
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76 Followers 3K Following
Vishal Brahmbhatt @VBrahmbhatt
13 Followers 3K Following
mrragava @mrragava
240 Followers 7K Following
The Lone Ranger @AbdullahMdKhan
132 Followers 7K Following
Deepak J @djstrangeloop
100 Followers 6K Following
Everything Account @ONEverythingAcc
33 Followers 606 Following Developments | Science and Technology | Trendings | Facts | Intersting Things | Sarcasm | Humour
Javi Moral @javimoralh
44 Followers 263 Following Data Science at @InsudPharma | Economics at @UPFBarcelona
Mehmet Keçeci, Physi... @mkecheci
2K Followers 8K Following Physicist (Completed the dissertation phase of the Ph.D. in Physics) 🧑🔬, Reviewer, Author 📚, Teacher & Lecturer 👨🏫, Occupational Safety Specialist (OSS)
Shir Weinbrand @WeinShir
70 Followers 1K Following Computational Social Science enthusiast • Text&Networks analysis • In love with Pandas (the library😉) •Entrepreneur's mind.Athlete's body.Artist's soul~J.Clear
TradeToInvest @trade_to_invest
141 Followers 1K Following Financial tech insights & wealth building strategies 📈 Long-term investor in transformative tech: $BTC $TSLA $RKLB Building toward $1M through smart investing
Hai-Feng Wang @AstroHaifeng
232 Followers 1K Following Love the Milky Way-Local Universe-Disk Systems-Dark Matter-New Physics with Data-Model-Simulations-Instruments. Love sports and history and travel, etc.
Qutub @Qutub_SS
22 Followers 3K Following
Joseph Karpinski @jkarpin2
1K Followers 4K Following Interest in Astronomy, Quantum Mechanics, Particle Physics,
Marius Millea @cosmic_mar
1K Followers 1K Following RIP astronomy / EDM burner Twitter 2012-2022 or so, truly gonna miss some of you, catch me on the crocheting site
CLASS Project @CLASS_telescope
583 Followers 435 Following Cosmology Large Angular Scale Surveyor | Measuring the Cosmic Microwave Background @JohnsHopkins | Discovering when the universe first lit up #NSFfunded
Eve Vavagiakis, PhD @EveVavagiakis
6K Followers 3K Following Asst Prof @DukeU exploring the cosmos w/@ACT_Pol @CCATObservatory @SimonsObs @cmb_s4 & our planet by foot and bike. Author @MITKidsPress. FLT End-to-Ender #556
Karin Sandstrom @karinsandstrom
3K Followers 1K Following Astronomer. Associate Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff. she/her
Project Jupyter @ProjectJupyter
87K Followers 72 Following Jupyter Notebook, JupyterLab and related projects – @mentions not monitored. Our primary presence is https://t.co/UtVFxa6xgw.
Claudia @claudiacicone
822 Followers 401 Following Astrophysicist. Full Professor at the University of Oslo. PI of @atlast_design. From Roma.
Javier M. Duarte @jmgduarte
791 Followers 1K Following associate prof @UCSanDiego on @CMSExperiment working on particle physics and machine learning. he/him/his
Chris Holdgraf @choldgraf
8K Followers 1K Following Executive Director @2i2c_org Executive Council @ProjectJupyter co-lead JupyterHub and JupyterBook open communities 🙌 open infrastructure 💻 open science 🧪
Simons Observatory @SimonsObs
2K Followers 247 Following The official account of the Simons Observatory.
Jón Emil Guðmundsso... @jegudmunds
341 Followers 278 Following Assistant Professor at the University of Iceland and Stockholm University working on observational cosmology.
@timnitGebru (@dair-c... @timnitGebru
172K Followers 3K Following Personal Account Author: The View from Somewhere Mastodon @[email protected] BlueSky https://t.co/XAYRV7YPvQ Also on LinkedIn. Less here
Jules @julesagent
31K Followers 16 Following An autonomous coding agent by @GoogleLabs. We’re building a new Jules to help you build better products. Join the waitlist, link below.
Astral @astral_sh
14K Followers 0 Following High-performance developer tools for the Python ecosystem, starting with Ruff, an extremely fast Python linter, written in Rust.
Google Antigravity @antigravity
168K Followers 14 Following An agentic development platform evolving the IDE into the agent-first era @GoogleDeepMind
Report @reportrai3
1.4M Followers 8K Following Pagina ufficiale di #Report , il programma d'inchiesta di Sigfrido Ranucci. La domenica, alle 20.30, su @RaiTre.
Tijmen de Haan @tijm6140
65 Followers 173 Following Astrophysicist & cosmologist. I work on experimental physics, using tools from statistics and electrical engineering.
Ion Stoica @istoica05
8K Followers 20 Following Professor at UC Berkeley, co-founder of Databricks, Anyscale, LMArena, Conviva.
Liesl McConchie @Liesl4CleanAir
3K Followers 836 Following Clean Air for Schools. Interim Executive Director at Corsi-Rosenthal Foundation. (@LieslMcConchie for math, 🧠, education content)
OpenAI @OpenAI
4.9M Followers 4 Following OpenAI’s mission is to ensure that artificial general intelligence benefits all of humanity. We’re hiring: https://t.co/dJGr6LgzPA
Hao Zhang @haozhangml
7K Followers 539 Following Asst. Prof. @HDSIUCSD and @ucsd_cse running @haoailab. Cofounder and runs @lmsysorg. 20% with @Snowflake
PolymathicAI @PolymathicAI
4K Followers 69 Following The Polymathic AI Collaboration. Shared account.
San Diego Cal-SOAP @SanDiegoCalSOAP
142 Followers 183 Following San Diego and Imperial Counties Cal-SOAP
Corsi-Rosenthal Found... @CRFoundationUS
1K Followers 117 Following Cleaner Safer Air for All. Grants of CR Box supplies to schools and community groups across the US.
BICEP/Keck @BICEP_Keck
543 Followers 155 Following Official Twitter account of the BICEP/Keck collaboration
OpenAI Developers @OpenAIDevs
356K Followers 1 Following Official updates for developers building with Codex & the OpenAI Platform • Service status: https://t.co/kZwnwdYYEq
Floor Broekgaarden �... @FloorAstro
2K Followers 1K Following Assistant Prof @ucsdastro studying Black Holes & Gravitational Wave Paleontology & Uncertainty 💫 Prev @Simons_SOF @ColumbiaThea PhD from @CenterForAstro '23
Dr. Clarissa R. Do Ó @AstroClary
7K Followers 471 Following B. Thomas Soifer (exp) postdoctoral fellow at caltech | exoplanet imaging, orbits & instrumentation | ucsd and ucsb alum
Justin Salhani @JustinSalhani
7K Followers 1K Following Al Jazeera Senior Producer - MENA desk TIMEP nonresident fellow '25-26
Susanna Azzoni @AzzoniSusanna
58 Followers 126 Following Cosmologist and Astrophysicist @PrincetonPhysics.
School of Computing, ... @scids_ucsd
84 Followers 7 Following School of Computing, Info & Data Sciences at UC San Diego
Ai2 @allen_ai
85K Followers 438 Following Breakthrough AI to solve the world's biggest problems. › Join us: https://t.co/MjUpZpKPXJ › Newsletter: https://t.co/k9gGznstwj
Kevin Tyle @nywxguy
1K Followers 5K Following Meteorologist; Python programmer and educator at @UAlbanyDAES 🏳️🌈
UCSD Divest @UCSD_Divest
428 Followers 21 Following
GO FAIR @GOFAIRofficial
3K Followers 775 Following A bottom-up international approach for the practical implementation of the European Open Science Cloud (EOSC). RT ≠ endorsement. #FAIRdata
Giulia Palermo @palermo_lab
4K Followers 2K Following Giulia Palermo Lab at the University of California, Riverside. Biophysicist passionate about Science & Art!
Berkeley Computing, D... @BerkeleyCDSS
7K Followers 599 Following News on data science and computing research and education from the UC Berkeley College of Computing, Data Science, and Society
Cosmology from Home @cosmofromhome
2K Followers 292 Following Cosmology from Home is an online cosmology conference with a novel format aimed at bringing the real-world workshop experience into the virtual domain.
Phil Marshall @drphilmarshall
1K Followers 258 Following Astrophysicist, into cosmology, gravitational lenses and inference. This is the closest thing I have to a research blog. I'll write more if you tweet at me.
Liesl McConchie @LieslMcConchie
10K Followers 1K Following Math with the Brain in Mind. Author. Teacher. Consultant. Author: Building a Positive Math Identity: Co-author: Brain-Based Learning with @ericjensenbrain.
Sandra Gesing @sandragesing
344 Followers 154 Following Executive Director of US-RSE and Senior Researcher at the San Diego Supercomputer Center
Colaboratory @GoogleColab
72K Followers 9 Following Colab is the tool Google uses to build Gemini, the easiest way to access TPUs and NVIDIA GPUs, and the best way to learn how to program in Python.
Dr. Luna Z 🌙 @cosmoloony
2K Followers 2K Following cosmo postdoc | she/they | 🇷🇸 ➡️ 🇺🇸 ➡️ 🇨🇦 | of material substance
Eric Feigl-Ding @DrEricDing
749K Followers 15K Following Health & economic warnings. Health policy, epidemiology & finance data. Faculty/Chair of Public Health @NECSI. Fmr @Harvard @JohnsHopkins. (backup @EricDingEpi)
Open OnDemand @open_ondemand
266 Followers 87 Following An @NSF-funded open-source #HPC portal based on @OSC’s original OnDemand portal providing easy web access to HPC resources.
Brian Greene @bgreene
1.1M Followers 29 Following Theoretical Physicist, Author, Co-founder @WorldSciFest, Professor of Mathematics & Physics, Columbia University
Atacama Large Apertur... @atlast_design
282 Followers 60 Following Development study for a next generation 50-meter aperture single-dish sub-millimeter astronomical observatory powered by renewable energy.
Luca Valenziano @ValenzianoLuca
18 Followers 95 Following
International Pulsar ... @IPTA_GW
1K Followers 47 Following A consortium of consortia: @EPTAGW @NANOgrav @CSIRO_ATNF @InPTA_GW @APT_GW
Convoy District SD @ConvoyDistrict
963 Followers 2K Following Transforming the Convoy area into a vibrant cultural, dining, & innovative economic hub....and SD's next great neighborhood. https://t.co/VugaR5DXMN
World Health Network @TheWHN
18K Followers 411 Following Bringing people, science, and compassion together to solve world problems and protect health. Let's #EndThisPandemic together.
Team Katie @TeamKatiePorter
1.1M Followers 92 Following Working hard to elect @katieporterca, a minivan-driving single mom, former Member of Congress, and consumer advocate, to be California's next governor.
Krispy Kreme @krispykreme
363K Followers 13K Following @KrispyKreme The home of the Original Glazed Doughnut🍩
Alberto Accomazzi @aaccomazzi
388 Followers 252 Following Principal Investigator, NASA Astrophysics Data System
PRobe far-Infrared Mi... @PRIMAprobe
194 Followers 55 Following PRIMA will reveal how abundant elements are built up in galaxies over cosmic time, and follow them as they become the molecular building blocks of new planets!
PATIENCE NABUKALU @patienceNabz
13K Followers 537 Following Climate justice Activist @fridays4futureU Founder #WetlandCleenUps. Team Leader @Youthword2hand 📥[email protected]
Greta Thunberg @GretaThunberg
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