Chi-kwan Chan @rndsrc
Computational Astrophysicist | Tinker | Hiker | Photographer | Dad rndsrc.dev Joined April 2013-
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First Images from the NSF-DOE Vera C. Rubin Observatory: youtube.com/live/dF1g-Ru8m… P.S. The 8.4-meter mirror was fabricated at the Richard F. Caris Mirror Lab at UA rubinobservatory.org/explore/how-ru… ;-)
Did you know that black holes are spinning?🌀🔎 To find out just how fast, EHT researchers used AI to connect simulated data to actual EHT measurements of M87 and SgrA*. They found that the black hole in SgrA* spins almost as fast as physically possible! aanda.org/articles/aa/fu…
#A #NeuralNetwork trained on millions of synthetic data sets indicates the Milky Way’s central black hole spins near its maximum rate, with its axis oriented toward Earth. @AandA_journal doi.org/g9pbh9 phys.org/news/2025-06-n…
In python, for i in range(-3,2): print(f'hash({i:2}) == {hash(i):2}') hash(-3) == -3 hash(-2) == -2 hash(-1) == -2 🤯 hash( 0) == 0 hash( 1) == 1 And this is not a bug: github.com/python/cpython…
The very timely Veritasium video was filmed at UA campus: youtu.be/zB_OApdxcno
It was great to return to the department where I earned my degree and present! I enjoyed sharing my thoughts on the connections between physics and AI with the community that helped shape my academic path. BTW, It takes only a few lines of python to implement a Hopfield network.
Here we goooo...
I recently had the chance to speak at the #OpenAIForum about "Scientific Discovery with AI". It was an awesome experience sharing our work on AI and astronomy at the @uarizona and @StewardAstro.
Join us at virtual OpenAI Forum event - Hybrid Event: Scientific Discovery with AI: Unlocking the Secrets of the Universe - July 17, 2024 5:30 PM PDT forum.openai.com/public/events/… #OpenAIForum
It's great to see so many academic family members!!!
Timelapse of the northern lights seen just outside Tucson, Arizona last night! What a magical night! #tucson #aurora #northernlights #arizonaurora #aurora #timelapse
Solar Eclipse
Kitt Peak 12m Telescope
Breaking news: the Event Horizon Telescope team unveils strong magnetic fields spiraling at the edge of Milky Way’s central black hole, Sagittarius A*. This new image suggests that strong magnetic fields may be common to all black holes. #OurBlackHole #SgrABlackHole

Wilton Stamm @WStamm88437
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TimeCommand @TimeCommandHQ
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Temporal Matters @_clocks_
9 Followers 697 Following I've studied Math, Physics and Electrical Engineering. I've been known to dabble in fiction writing and photography. Thinking of writing a blog about Time.
Mariano Dominguez @marianojavierd1
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Hina Suzuki @Hina85801331
6 Followers 95 Following @Uarizona Astronomy/Electrical and Computer Engineering
Desolation @minimal_arts
190 Followers 4K Following Amateur art ... recurring themes ... austerity, simplicity, restraint and often, in one sense or another, emptiness. Also, maybe some Math and Science.
Teathet @Teathetr3e1Z
22 Followers 3K Following The real freedom is not to do whatever you want, but to not do what you don’t want to do!
@vikmani.bsky.social @astro_vik
88 Followers 187 Following @ https://t.co/7Vm7H2C5YE computational astrophysicist & third year astro PhD @stewardastro 💻⚫️💥
Andrew Mayne @AndrewMayne
691K Followers 569K Following General Partner @ Zero Shot Fund, founder https://t.co/TaZkjy3cR7, former technical staff OpenAI, Shark Week, host of OpenAI Podcast & WSJ bestselling author
Sagnik Chatterjee @SagnikChatterj1
55 Followers 310 Following Post Doc @ IFIN-HH | Former PhD student and PMRF fellow @iiserbhopal | works on Neutron Stars
Y. Song @Stevejo93543
83 Followers 7K Following Particle physics, high-energy physics, neutrinos, dark matter, beyond the Standard Model, lattice QCD, quarks, gluons @imperialcollege @ImperialPhysics
Rocco Lico @roccolico_astro
17 Followers 23 Following
Space Insight @comm_ispace
2K Followers 2K Following Exploring SPACE for you! | Open Source Community for Astronomy, Space Science R&D, & it's related aspects. Get featured - DM or #SpaceInsight
Diane @tillerdiane79
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ThaliaTraianou @astrothalia
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Huib, jived now to th... @someJIVE
502 Followers 248 Following EHT director, JIVE & Leiden astronomer, tweeting personal observations and opinions
Hector Olivares @HectorOlivares1
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Ho Sang (Leon) Chan @LeonCha29197152
3 Followers 83 Following Graduate Research Assistant at JILA | Astrophysicists | Croucher Scholar
Faisal Alam @FaisalAlam97
198 Followers 337 Following PhD student at University of Illinois studying quantum information theory
Millennium Twain #Tru... @MillenniumTwain
2K Followers 7K Following A Million-fold refinement in our EM-Field Mapping of Creation in Electrons, Protons, DiProtons, Alphas, FTL StarShips, Astrospheres, Cluster/Streams, Galaxies —
Jonas Enander @Jonas_Enander
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Priyamvada Natarajan @SheerPriya
16K Followers 908 Following @Yale astrophysicist, works on exotica in the universe: dark matter, black holes; #TIME100 2024; Author: Mapping the Heavens • https://t.co/xfA5eYhEnU
Akhil Uniyal @uniyal003
33 Followers 921 Following Theoretical and Computational Physicist (GR, Astro)
mukesh rathod @mrathod024
5 Followers 299 Following
VLBI Group at IAA @iaavlbi
197 Followers 40 Following Our group is a part of @IAA_CSIC, @csic & @ehtelescope | We work on black hole accretion and relativistic jet formation using mm-VLBI imaging.
Yu-Hsiu Huang @astrohsiu
133 Followers 350 Following PhD candidate @azstewobs with broad interest in cosmology. Currently involved in weak lensing. Hiking/climbing is life. they/she 🏳️🌈
Nimesh A. Patel @nimeshapatel
472 Followers 2K Following Astrophysicist & Project Engineer, working at the Center for Astrophysics | Harvard & Smithsonian. Greenland Telescope; Submillimeter Array; EHT & ngEHT.
Eduardo Salgado Enrí... @astroeduardo1
577 Followers 5K Following Astrophysicist, expert in measuring the quality of education #Astrophysics #Astronomy #Education #Astrofísica #Astronomia #Educación #Cotopaxi
Daniel | ScienceSocks... @ScienceSocks
3K Followers 2K Following Orbit in style with science socks, space jewelry, and beyond. Stellar gifts for scientists, engineers, and astronomy lovers.
Lei Liu (刘磊) @thirtyliu
47 Followers 481 Following Engineer and astronomer in Shanghai Astronomical Observatory, CAS.
Feyza @Feyzaaturhann
72 Followers 120 Following
Fouz @FouzSiddiqui_
1K Followers 5K Following With the Resistance | Cofounder @MagScientia | Science Outreach Manager @KainaatStudios | Lecturer at a Higher Education Institution. RTs ≠ Endorsements!
Dimitrios PSALTIS @DimitriosPSALT1
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Aniket Sharma @_Sharma_Aniket_
68 Followers 136 Following Physics undergrad at @iisermohali | Researcher in relativistic ray-tracing and radiative-transport near black holes | Master's Thesis at @the_IAS and @azstewobs
Alejandro Cruz-Osorio @ACruz_Osorio
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Rustybucket 🌻 @russellduma
117 Followers 2K Following Father of 3, interested in renewables and avid supporter of the round ball game
Kirill Sokolovsky @kirxkirx
389 Followers 3K Following There is no greater power in the universe than the need for freedom. Against that power, governments and tyrants and armies cannot stand.
Juli Fowler @wwench
115 Followers 1K Following
Dr. Rebecca Levy @AstroLevy
651 Followers 805 Following Astrophysicist | @STScI Postdoctoral Fellow at @SpaceTelescope | galaxies, stellar feedback, and gas dynamics | tweets & typos my own | she/her
Tonka @Bearmace4u
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Planetario de Bogotá @planetariobta
33K Followers 1K Following Mucho más que estrellas. Escenario del Instituto Distrital de las Artes Idartes. ✨
Freek Roelofs @froeloefs
226 Followers 205 Following Black hole astrophysicist and blues guitarist | @CenterForAstro, @ehtelescope | 🇳🇱 🇺🇸 🏳️🌈
Bart Ripperda @BartRipperda
375 Followers 628 Following Official Twitter account of Professor Bart | Plasma-Astrophysics | Canadian Institute for Theoretical Astrophysics
Karina Nguyen @karinanguyen_
41K Followers 997 Following research & product @OpenAI, prev. @AnthropicAI, @nytimes, @square, @dropbox + visual forensics for the Pulitzer Prize investigations
U of A Office of Publ... @UofA_Safety
12K Followers 223 Following @UArizona Office of Public Safety is a centralized, coordinated approach to campus safety | Emergency call 911 | UAPD Non-Emergency call 520-621-8273 (UAPD) |
Hugging Face @huggingface
560K Followers 208 Following The AI community building the future. https://t.co/VkRPD0Vclr
Berkeley AI Research @berkeley_ai
225K Followers 367 Following We're graduate students, postdocs, faculty and scientists at the cutting edge of artificial intelligence research.
François Chollet @fchollet
572K Followers 813 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
Chris Olah @ch402
122K Followers 181 Following Reverse engineering neural networks at @AnthropicAI. Previously @distillpub, OpenAI Clarity Team, Google Brain. Personal account.
AI at Meta @AIatMeta
712K Followers 288 Following Together with the AI community, we are pushing the boundaries of what’s possible through open science to create a more connected world.
Andrew Ng @AndrewYNg
1.3M Followers 1K Following Co-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
Lex Fridman @lexfridman
4.4M Followers 588 Following Host of Lex Fridman Podcast. Interested in robots and humans.
@vikmani.bsky.social @astro_vik
88 Followers 187 Following @ https://t.co/7Vm7H2C5YE computational astrophysicist & third year astro PhD @stewardastro 💻⚫️💥
ARC Prize @arcprize
26K Followers 173 Following A North Star for open AGI. Co-founders: @fchollet @mikeknoop. President: @gregkamradt. Help support the mission - make a donation today.
BASIS Tucson Primary @BASISTucsonPrim
162 Followers 83 Following BASIS Tucson Primary is a tuition-free, public charter school serving grades K–4.
Jim Fan @DrJimFan
325K Followers 3K Following NVIDIA Director of Robotics & Distinguished Scientist. Co-Lead of GEAR lab. Solving Physical AGI, one motor at a time. Stanford Ph.D. OpenAI's 1st intern.
IAIFI @iaifi_news
2K Followers 335 Following The NSF AI Institute for Artificial Intelligence and Fundamental Interactions #NSFfunded
OpenAI @OpenAI
4.3M Followers 3 Following OpenAI’s mission is to ensure that artificial general intelligence benefits all of humanity. We’re hiring: https://t.co/dJGr6Lg202
OpenAI Developers @OpenAIDevs
222K Followers 1 Following Updates for developers building with the OpenAI Platform and API • Service status: https://t.co/kZwnwdYqOS • Support: https://t.co/qCi6M5ESZU
Rowan Cheung @rowancheung
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Mark Marley @astromarkmarley
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Anthropic @AnthropicAI
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Keenan Crane @keenanisalive
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Andrej Karpathy @karpathy
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#AstroHackWeek @AstroHackWeek
332 Followers 165 Following 6th annual Astro Hack Week August 2018 at the Kavli Institute for Cosmology, Cambridge, UK
Mario Juric @mjuric
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The DiRAC Institute @uwdirac
470 Followers 91 Following Seeking a universe understood through data-intensive discovery.
Aniket Sharma @_Sharma_Aniket_
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Google AR & VR @GoogleARVR
148K Followers 105 Following Years of AR/VR innovation continue on @AndroidDev! Join us there for all future #AndroidXR adventures.
Chung Ching Kwong 鄺... @chungchingkwong
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ALMA Observatory📡 @almaobs
57K Followers 696 Following Atacama Large Millimeter/submillimeter Array, is an international partnership of @ESO, @TheNRAO and @prcnaoj_en in cooperation with the Republic of Chile.
ESO @ESO
157K Followers 1K Following The European Southern Observatory designs, builds & operates world-class observatories on the ground for the benefit of society 🇨🇱 @ESO_Chile
National Radio Astron... @TheNRAO
46K Followers 639 Following The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: https://t.co/c6wcVdrTYo
Alejandro Cruz-Osorio @ACruz_Osorio
174 Followers 174 Following Astrophysicist at Institute of Theoretical Physics, Goethe University. Relativistic Plasmas, Jets & Accretion Disks. @ehtelescope scientist
Bart Ripperda @BartRipperda
375 Followers 628 Following Official Twitter account of Professor Bart | Plasma-Astrophysics | Canadian Institute for Theoretical Astrophysics
Freek Roelofs @froeloefs
226 Followers 205 Following Black hole astrophysicist and blues guitarist | @CenterForAstro, @ehtelescope | 🇳🇱 🇺🇸 🏳️🌈
Lia Medeiros PhD @astronolia
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Dimitrios PSALTIS @DimitriosPSALT1
99 Followers 17 Following astrophysics and machine-learning enthusiast
Yosuke Mizuno @Yo320
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Ilse van Bemmel @ivbemmel
400 Followers 468 Following Astronomer, finder of fringes, software demolisher and herder of cats. She/her.
Ivan Marti Vidal @imartividal
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Rosie Johnson @rosiemjohnson
23 Followers 383 Following