Peter Melchior (@[email protected]) @peter_melchior
Asst. Prof. of Statistical Astronomy at @Princeton, @PU_Astro & @PrincetonSML. I weigh cosmic structures, value every pixel, express my own views. pmelchior.net Joined January 2012-
Tweets2K
-
Followers530
-
Following98
-
Likes1K
Join @PU_Astro as Assistant Professor! princeton.edu/acad-positions… We're primarily looking for theoretical and observational dynamics, time-domain astrophysics, and modern statistical techniques in astrophysics.
Led by Yan Liang, we looked for weird objects in the new DESI BGS data and found some! Funky quasars and a whole lot of stars arxiv.org/abs/2307.07664
Very happy to see that joint data analysis between Rubin and Roman is explicitly called for
Discover a concise and accessible introduction to exoplanets that explains the cutting-edge #science behind recent discoveries. The Little Book of Exoplanets by Joshua N. Winn. Available in print, ebook and #audiobook. #planets #exoplanets #space hubs.ly/Q01WkQ5L0
Excited to hear my paper co-led with @peter_melchior submitted to the ML4Astro workshop at ICML2023 was given a talk. “Spotting Hallucinations in Inverse Problems with Data-Driven Priors”. Paper (out soon) discusses quantifying uncertainty in prior informed image generations.
"The American West is certainly in a water crisis." @EPrinceton professor @reedh2o sat down with @Ginger_Zee and @KentonGewecke to talk about the future of water in America and problems the country is facing now: abcn.ws/41LPsaX 📷: @ABC / @USGS
The @ztfsurvey summer school (24-28 July) is now open for applications. This year's theme is transients and students will get to play with lots of transient data from our survey! To learn more, visit ztf.caltech.edu/summer-school-… #summerschool #astronomy
In our new PNAS paper, we use machine learning to discover novel equations for deriving masses of clusters of galaxies from observational quantities! (1/10) pnas.org/doi/10.1073/pn… with @MilesCranmer @paco_astro@jcolinhill @DavidSpergel @cosmo_shirley,Leander,Nick,Daniel,Lars.
Do you know what your watershed did last summer? @LCofthedesert does and even gave an amazing talk about it at SXSW at the @uarizona Wonder House! Fortunately for those of us who couldn’t be there, it’s recorded: youtube.com/watch?v=weTDXE…
I've been thinking about sustainability of scientific open source software more in the last few months. Something that has become clear to me is that having a maintainer team is not a side effect of a successful project, but (*effectively) a requirement for one.
The Ogallala aquifer is the largest underground water source in North America, giving life to ~ 30% of all crop and animal production in the US The aquifer’s water supply has dropped by as much as 75% and is on pace to dry up in the next 70 years.
Registration is open for the 10th Astronomical Data Analysis Summer School #school #dataanalysis (ADA X), Hersonissos, Crete, Greece : ada10.cosmostat.org
There was a thread on here last week where two Turing award winners are jovially promoting the idea that mathematical statistics is better at determining causation than common sense. 1/10
Don't miss out on this special seminar at CSML with Rose Yu, who will be speaking on "Physics-Guided AI for Learning Spatiotemporal Dynamics." RSVP for lunch. March 27th. buff.ly/3kUUQZF
I packed-up a full-text paper scraper, vector database, and LLM into a CLI to answer questions from only highly-cited peer-reviewed papers. Feels unreal to be able instantly get answers by an LLM "reading" dozens of papers. 1/2
The satellites of our Milky Way and MW-like galaxies have been studied extensively, in particular, their star formation and quenching. We ask: how's the quenching of large puffy satellites? Surprisingly, we find that quenching is not tied to being puffy. arxiv.org/abs/2302.14108
In September 2022, @AccelerateSci @ml4science and @datascience_uw, convened 30 researchers from across disciplines at a @dagstuhl workshop on ‘Machine learning for science: bridging data-driven and mechanistic modelling’. The result: a beautiful roadmap acceleratescience.github.io/resources/mach…
Great new work by @PabloLemosP @ElenaMassara @cosmo_shirley @MilesCranmer @changhoon_hahn @DYallup @muntazirabidi @meickenberg @FlatironCCA @NYUPhysics - 'Robust #simulation-based inference in #cosmology with #Bayesian #neuralnetworks' - bit.ly/3IM2Wgs #astrophysics #AI
We are happy to announce our @CZ_Stiftung summer school on scientific machine learning in astrophysics at @IWR_HGS @UniHeidelberg from August 14.-18.2023. For more infos see astroai-lab.de/conferences/cz… with @SoledadVillar5 @mfouesneau and aura obreja

Miles Cranmer @MilesCranmer
13K Followers 984 Following Assistant Prof @Cambridge_Uni, works on AI for the physical sciences.
David W Hogg @davidwhogg
11K Followers 732 Following peace, cosmology, stars, exoplanets, engineering, data analysis, emcee, wobble, The Cannon, https://t.co/GDgZayQiDJ, The Joker, #openscience, #otherpeoplesdata
Song Huang @dr_guangtou
2K Followers 1K Following Assistant Prof. in Astronomy at Tsinghua University, Beijing. @[email protected] Love all galaxies, study the big and small ones.
Grant Tremblay @astrogrant
19K Followers 7K Following Personal account. All views are 💯% my own and do not represent those of any institutions I'm affiliated with. No tweets here are newsworthy 😬
Rachael @rareflwr41
4K Followers 2K Following my views are not those of my institution or my instituition's institution, or my institution's institution's institution and certainly not the administration.
Kyle Cranmer @KyleCranmer
17K Followers 3K Following Director Data Science Institute @UWMadison @datascience_uw. EiC @MLSTjournal. Physics, stats/ML/AI, open science. same handle @sigmoid.social and bsky
DEACTIVATED find me a... @cosmonist
3K Followers 1K Following Galaxies of the Universe, UNITE! 🇧🇷 Cosmologist Researcher @TheOKC & @imperialcollege visitor He/Him - ENG & PT (Opinions all mine)
BenneHolwerda @BenneHolwerda
7K Followers 4K Following Extra-Galactic Astronomer & dad. Dust, galaxy morphology, supernovae, galaxy evolution. University of Louisville. Opinions & typos my own. He/him Hij/Hem
Niko @NikoSarcevic
16K Followers 7K Following cosmologist @DukePhysics @LSSTDESC @NASARoman @theDESurvey | prev. @XENONexperiment | opinions mine 🇭🇷🇷🇸🇦🇹🇮🇹🇩🇪🇬🇧🇺🇸🇪🇺🏳️🌈
Rohan Naidu @Rohan_Naidu
4K Followers 6K Following Astronomer @ MIT. First graduating class of Yale-NUS College, Singapore. 🇮🇳 →🇸🇬 →🇺🇸
Karin Sandstrom @karinsandstrom
3K Followers 1K Following Astronomer. Associate Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff. she/her
Matt @Space_Boy_Matt
289 Followers 494 Following PhD student at @Princeton University. Interested in machine learning, computational statistics, and computational/theoretical astrophysics.
Daniel Green @nu_phases
9K Followers 557 Following Associate Professor @UCSanDiego, Cosmologist and Particle Theorist
Alex Amon @astroalexamon
2K Followers 1K Following Ph.D | Trini 🇹🇹 astrophysicist & cosmologist ✨@PrincetonAstro 👩🏾🔬 very into plants, the ocean & our Universe 🔭
John F. Wu @jwuphysics
1K Followers 980 Following Associate Astronomer at @SpaceTelescope and @JohnsHopkins. Opinions my own. He/him. https://t.co/mPRS8s9bZf
Dr. James Beattie @astro_magnetism
2K Followers 1K Following Ph.D @ourANU | @Princeton and @CITA_ICAT Research Fellow | 2022 Fulbright scholar @ucsc | Astrophysicist | Fourier transformer | 🇦🇺🇳🇿➡️🇨🇦🇺🇸
Shirley Ho @cosmo_shirley
4K Followers 375 Following Group Leader @FlatironCCA @SimonsFdn 🌟 Professor at @NYUPhysics @NYUDataScience @Princeton ML/AI-accelerated Science, @PolymathicAI HongKonger
David Spergel @DavidSpergel
9K Followers 192 Following Astrophysicist at Princeton University and Flatiron Institute President, Simons Foundation. Views are my own.
Neerav Kaushal @KaushalNeerav
221 Followers 679 Following AI scientist in drug discovery and astrophysicist
Alex @zzmxmk369
0 Followers 127 Following
Xiao GUO @_its_xiao_guo
83 Followers 305 Following Postdoctoral Researcher at @UQSchoolEECS, spectroscopist --- understand nanoscale light-matter interactions. #sSNOM Terahertz s-SNOM and nano-FTIR
Hai-Feng Wang @AstroHaifeng
224 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.
Rishabh Gupta @arishabh8
461 Followers 5K Following Climate Change + ML , Google ML Camp, UTokyo, IITK, Views are my own. RT ≠ endorsements
Dylan Foster 🐢 @canondetortugas
3K Followers 1K Following Foundations of RL/AI @MSFTResearch. Previously @MIT @Cornell_CS https://t.co/vQIdUzsw8B RL Theory Lecture Notes: https://t.co/bhgL3aKIk0
Alain @ReneAlain0
53 Followers 1K Following
Samuel Pérez Díaz @samuelperezdi
340 Followers 1K Following PhD Student at @NYU_Courant. AI4Science. prev: @iaifi_news @CenterForAstro @hseas @ICT_URosario
gnthibault @gnthibault
145 Followers 833 Following #AppliedMathematics #ML #DL #optimization #SignalProcessing #MachineLearning #hpc #Cpp #cuda #python #Astronomy
ElAgusDeLaGente @nicklessagus
30 Followers 691 Following Stat rosa pristina nomine, nomina nuda tenemus
Naylynn Tañón Reyes... @nay_lynn_
822 Followers 459 Following SETI Institute | Technical Project Manager for NASA's Pandora Mission | Statistical & Data Sciences @smithcollege '23 | #LatinaInSTEM | she/her | Views = my own
Siddharth Chaini @sidchaini
263 Followers 637 Following AKA Sid Chaini | PhD student at the University of Delaware | Time-domain astronomy and data science | @sidchaini.bsky.app | BS-MS IISERB 2022
Deacon Michael Hogan @Deaconmike53
5K Followers 7K Following Student of Astronomy Astrophysics Chemistry Mathematics Physics Atmospheric Science All Things #NASA
Girish Gupta @jammastergirish
17K Followers 8K Following Engineering lead at Riley. AI interpretability researcher. Former int’l investigative journalist. Author. Love physics, photography, and time with my toddler!
Sylvia Biscoveanu @sylvia_bisco
1K Followers 416 Following Astrophysics PhD from @MIT studying gravitational waves with @LIGO | @NASA Einstein fellow @NUCIERA | violinist and cat lover
Sotiria Fotopoulou @Sotiria_F
140 Followers 217 Following Lecturer at Uni Bristol | Euclid Consortium | Astronomer, large surveys, black holes, let the robots run the world!
Prof. Carl E. Fields @carlnotsagan
8K Followers 882 Following Computational astrophysicist & Assistant Professor @StewardAstro. Forbes 30u30, 2021 (Science). he/him.
Samaya Nissanke (she/... @samayanissanke
4K Followers 4K Following Astrophysicist, gravitational waves, black holes, neutron stars, working mum, spokesperson & associate prof @UvA_Amsterdam, @samayanissanke.bsky.social
Brad Neuberg @bradneuberg
12K Followers 9K Following Staff Machine Learning engineer @planet. Prev @ Dropbox & Google. Started coworking. Interests: ML, space, Earth Observation, VR. https://t.co/m7fXSRYQW3
Miguel Valencia @MVHydroGeo
136 Followers 475 Following Grad student @FIU focusing on hydrogeological modeling in South Florida.
Dr. Sruthi Ravikulara... @sruthi_rvkn
31 Followers 138 Following PhD in astroparticle physics 🛰️ @APC_Laboratory
B @B32933796
4 Followers 399 Following
Steve jordan @Stevejo93543869
10 Followers 2K Following Particle physics, high-energy physics, neutrinos, dark matter, beyond the Standard Model, lattice QCD, quarks, gluons
Mason @wu_zihao52775
0 Followers 208 Following
Caleb Lammers @CalebEWLammers
60 Followers 176 Following Astrophysics grad student @Princeton | Exoplanets, dynamics, machine learning
Juncal Arbelaiz @JuncalArbelaiz
412 Followers 1K Following Postdoc Fellow @SchmidtFellows at @Princeton | Applied Math PhD from @MIT | #WomenInSTEM
Tianle Cai @tianle_cai
8K Followers 5K Following ML PhD @Princeton. Life-long learner, hacker, and thinker. Tech consultant & angel investor. Prev @togethercompute @GoogleDeepMind @MSFTResearch @citsecurities.
Rongjun Huang @IGNIZ_DRAGONXV
390 Followers 5K Following There is no Astro here; while there is Astro here: @AstroRongjun
Day @dayhyi
43 Followers 845 Following
Bernard WERLÉ @BeWerle
48 Followers 579 Following 🇨🇵🇩🇪🇪🇺🇺🇲🌍 Retiree and physics student. https://t.co/zH9YXCXwBR
Pompeii @Astro_Pompeii
1 Followers 32 Following
Lasse Elsemüller @elseml_
233 Followers 499 Following PhD candidate in statistical modeling @ Heidelberg University. Interested in deep learning, Bayesian stats & cognitive modeling.
Jingyuan Zhao (赵经... @Astro_JYZhao
208 Followers 2K Following Amateur Astronomer, Member of Chinese Astronomical Society, Shandong Astronomical Society and Xingming Observatory.
Gaurav Shukla @gs_gauravshukla
73 Followers 914 Following Integrated Masters Student at NISER Working on Exoplanetary Atmospheres and Machine Learning
Diamanto K @didi_evermore
16 Followers 566 Following
Chaitanya Chawak @chaitanyachawak
122 Followers 224 Following Currently @CosmoStatLab 🌌 | BS-MS @ IISER Tirupati // Love tea, my dog, chocolates, puzzles, overthinking and not being shouted at. ✨
Taylor Pomfret @pomfret_taylor
90 Followers 982 Following Physics with Theoretical Physics @imperialcollege, @ZeroGravity Scholar 2021, Astrophysics, Phys. Ed
Ashod Khederlarian @Ashod_kh
14 Followers 180 Following
Tomasz Różański @rozanski_t
67 Followers 486 Following
asci @angry_crowl
38 Followers 549 Following A human trying to understand the world. Undergraduate student, looking out for opportunities in Phy research #physics, #deeplearning and #biology enthusiast.
Miles Cranmer @MilesCranmer
13K Followers 984 Following Assistant Prof @Cambridge_Uni, works on AI for the physical sciences.
David W Hogg @davidwhogg
11K Followers 732 Following peace, cosmology, stars, exoplanets, engineering, data analysis, emcee, wobble, The Cannon, https://t.co/GDgZayQiDJ, The Joker, #openscience, #otherpeoplesdata
Kyle Cranmer @KyleCranmer
17K Followers 3K Following Director Data Science Institute @UWMadison @datascience_uw. EiC @MLSTjournal. Physics, stats/ML/AI, open science. same handle @sigmoid.social and bsky
David Pfau @pfau
29K Followers 2K Following Knowledge manifests itself in radiant dreams that shimmer like the wild sun Views are my own https://t.co/xqtVHHVI17 on 🦋
Michael Black @Michael_J_Black
84K Followers 702 Following Director, Max Planck Institute for Intelligent Systems (@MPI_IS). Chief Scientist @meshcapade. Building 3D digital humans using vision, graphics, and learning.
Erik Tollerud (@eteq@... @eteq
2K Followers 305 Following Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/they.
David Spergel @DavidSpergel
9K Followers 192 Following Astrophysicist at Princeton University and Flatiron Institute President, Simons Foundation. Views are my own.
Laura Condon @LCofthedesert
740 Followers 109 Following Assistant professor of hydrology, living in the desert, interested in water, sustainability and climate
ASCL, @asclnet.bsky.s... @asclnet
922 Followers 88 Following Making astrophysics research source codes discoverable since 1999 [email protected]
Kathleen Creel @KathleenACreel
3K Followers 4K Following Assistant Professor of Philosophy & Computer Science @Northeastern. Machine learning & scientific knowledge; ethics of automated decision-making.
Jiaxin Shi @thjashin
4K Followers 348 Following Research Scientist @GoogleDeepMind | prev @Stanford @MSRNE @VectorInst @RIKEN_AIP_EN @Tsinghua_Uni. Building probabilistic & algorithmic models for learning.
ChangHoon Hahn @changhoon_hahn
78 Followers 87 Following astronomer/cosmologist @PU_astro interested in galaxies and data 🔭🎾🍳
Kaze Wong @physicskaze
927 Followers 423 Following Assistant research professor, Research software engineer and coach at Johns Hopkins University. I do physics, deep learning, software, and high jump
Michael Liebreich - @... @MLiebreich
69K Followers 185 Following Not posting here - other links to my stuff on Cleaning Up, Substack, BloombergNEF, Ecopragma Capital, Pragmacharge, etc. For engagement, find me on 🦋
Jiaxuan Li @AstroJacobLi
460 Followers 540 Following 李嘉轩, graduate student at Princeton. Understand galaxies using telescopes and supercomputers.
Josh Peek @jegpeek
2K Followers 599 Following Associate Astronomer and Head of Data Science at @stsci. Principal Investigator @MAST_News. Research Scientist at @JohnsHopkins. Occasional tweets all my own.
Princeton AI Club @PrincetonAIClub
1K Followers 88 Following Follow us to stay up-to-date on AI @Princeton. We are students, postdocs, & faculty at Princeton University who are excited about AI. #PrincetonAIClub #PAIC
Machine Learning: Sci... @MLSTjournal
10K Followers 10K Following A multidisciplinary, #openaccess journal devoted to the application and development of #machinelearning for the sciences. Published by @IOPPublishing.
Michael Girdley @girdley
239K Followers 3K Following I create, incubate, own, oversee, and eventually sell businesses. Then, Chilis. @hirewithnear, @holdcoconf, @alamofireworks, @cyberfortress, Union Media + more.
John Beacom @ProfJohnBeacom
1K Followers 591 Following Ohio State Arts and Sciences Distinguished Professor of Physics and Astronomy. Into neutrinos. Fresh off the turnip truck.
Pierre Gentine @PierreGentine
5K Followers 510 Following Professor @Columbia University, Director of @LEAPstc NSF Science and Technology Center, Working on #climate, #water and #ecology, born at 335ppm, views my own
CONTEMPORIST @CONTEMPORIST
13K Followers 317 Following CONTEMPORIST is a celebration of contemporary culture, focused on architecture, design, art and travel.
Princeton Entrepreneu... @princeton_PEC
1K Followers 1K Following Enabling Entrepreneurship the Princeton Way, on campus and beyond. Part of the Office of the Dean for Research at Princeton University.
Daniela Witten @daniela_witten
45K Followers 694 Following dorothy gilford endowed chair and prof of stat/biostat @uw. all views my own.
Jakob Macke @jakhmack
4K Followers 358 Following #ML & #AI for scientific discovery · Prof @uni_tue @ml4science @mackelab @BernsteinNeuro · Adjunct @mpi_is · Fellow @EllisForEurope · Now: @jakhmack.bsky.social
@iamstarnord.bsky.soc... @iamstarnord
3K Followers 4K Following No more tramlines • Feeling the churn • he/him •
Brancher @pybrancher
232 Followers 6 Following A user-centered Python package for differentiable probabilistic inference
Volker Quaschning @VQuaschning
129K Followers 132 Following 👨💼Professor für Regenerative Energiesysteme (HTW Berlin) 🔆Experte für Erneuerbare Energien, Energiewende, Klimaschutz Mastodon: @[email protected]
Dalai Lama @DalaiLama
18.0M Followers 0 Following Welcome to the official twitter page of the Office of His Holiness the 14th Dalai Lama®️.
Tom Charnock @T_Charnock
178 Followers 76 Following Researcher and consultant in statistical machine learning. Enthusiastic melodeon and bouzouki player. Normally found smiling.
Ryan Adams @ryan_p_adams
35K Followers 1K Following Machine Learning Researcher, CS Professor (@PrincetonCS), Dad, Woodworker
Mario Figueiredo @mariotelfig
2K Followers 466 Following Distinguished Prof of ECE and Feedzai Prof of machine learning @istecnico, @itnewspt Professor, photographer, music lover, curious about almost everything.
Brandon Amos @brandondamos
20K Followers 2K Following research scientist @MetaAI (FAIR) | optimization, machine learning, control, transport | PhD from @SCSatCMU
articulation copy (2) @mxsage
14K Followers 991 Following speculativ digital biology (they) ////// https://t.co/XGGj6kzM0e
Xavier Bresson @xbresson
17K Followers 872 Following Prof @NUSingapore #GraphNNs #LLMs #Theory #MolecularMaterialScience #Teacher #NRF_Fellow #MediocreImmigrant Opinions my own
DeepGraphLibrary @DGLGraph
3K Followers 150 Following Official twitter for Deep Graph Library (DGL) #DGL
Daniel Tamayo @astrodantamayo
537 Followers 284 Following Assistant Professor @HarveyMudd studying how planetary systems form and evolve. Past-Chair of the AAS Division on Dynamical Astronomy (he/him).
Peyman Milanfar @docmilanfar
93K Followers 493 Following Distinguished Scientist at Google. Computational Imaging, Machine Learning, and Vision. Tweets = personal opinions. May change or disappear over time.
Christina Kreisch @CDKreisch
124 Followers 95 Following Astrophysics Ph. D. @Princeton, @NSF Fellow, @Princeton Charlotte Elizabeth Procter Fellow, Equestrian
astro-ph-leaks @LeaksPh
5K Followers 4 Following Eavesdropping on tex-source comments in papers posted to astro-ph
Princeton SML @PrincetonSML
969 Followers 173 Following Princeton University Center for Statistics and Machine Learning
Lachlan Lancaster @lachlancaster
489 Followers 365 Following Junior Fellow in @Simons_SOF working on star formation @ColumbiaAstro and @FlatironCCA formerly @PU_Astro he/him
Colin Carroll @colindcarroll
3K Followers 865 Following Software engineer @Google. Interested in Python, math, and machine learning. Not opposed to hiking, running, and biking. PyMC3 + ArviZ developer. he/his.
Samuel Farrens @Sam_Farrens
298 Followers 630 Following Researcher at @CosmoStatLab in @CEAParisSaclay, working on software for cosmology. Mastodon: https://t.co/h6PjhFAZfh
Euclid Consortium @EC_Euclid
3K Followers 50 Following Official Consortium of the #ESAEuclid A space mission to map the #DarkUniverse
Roots of Progress Ins... @rootsofprogress
16K Followers 28 Following Building a culture of progress for the 21st century. Subscribe: https://t.co/72IjFgVdVk Support: https://t.co/xM6IPiohiz
Princeton University @Princeton
562K Followers 1K Following The official account of Princeton University. In the Nation’s Service and the Service of Humanity.
Marc Leatham @quarkmarc
5K Followers 2K Following Space Systems Engineer. Astrophotographer and S.T.E.A.M. presenter when not inventing. My Astronomy Art can be found in offices and homes around the planet!
Jazz On This Day @jazzonthisday
11K Followers 2 Following Celebrating jazz history one day at a time. Tweets by @RhysTranter.
Schmidt Futures @SchmidtFutures
13K Followers 92 Following Supporting projects at the intersection of talent and technology.