iiinova — where your digital self keeps evolving

Dan F-M @dfm.io · 12/01/2026

I don’t have much time in my life for fun hack projects these days, but I’ve always wanted to learn how custom Bluesky feeds work, so I managed to sneak some hacking in over the weekend while the kids were sleeping and built a “Found Haikus” feed: bsky.app/profile/dfm....

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Philip Mocz @philipmocz.bsky.social · 15/09/2025

We're hiring Flatiron Research Fellows & Software Fellows at the @flatironinstitute.org CCA. These independent postdoc positions offer outstanding opportunities for collaboration, computation, and scientific growth in NYC: apply.interfolio.com/173402 apply.interfolio.com/173403

apply.interfolio.com

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

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Dan F-M @dfm.io · 15/07/2025

Now that I don’t work in astro research anymore (and because I’m on parental leave), it is time to retire from @joss-openjournals.bsky.social. It’s been an amazing 5 years supporting open source software in academic astrophysics, and I’m excited to see what the future holds for JOSS!

A screenshot of an iOS notification from Slackbot that says “You have been removed from the private channel joss by Arfon Smith”

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Flatiron Institute @flatironinstitute.org · 28/02/2025

Applications are open for #FlatironCCA's 2025-2026 Pre-Doctoral Program. Participants will collaborate with scientists on a project complementary to their thesis for 4.5 months at the Flatiron Institute. Stage 1 applications due 3/14: www.simonsfoundation.org/flatiron-ins... #science #astrophysics

simonsfoundation.org

Flatiron Institute Center for Computational Astrophysics Pre-Doctoral Program

Flatiron Institute Center for Computational Astrophysics Pre-Doctoral Program on Simons Foundation

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Sarah Blunt, PhD 🇵🇸 @blunt-comma-s.bsky.social · 04/01/2025

Hey bluesky! Do you want to develop your own open-source software in Python? Apply to attend Code/Astro! Website: semaphorep.github.io/codeastro/ Scroll all the way down for the application link. :) Apps are due Feb 1! (1/2)

semaphorep.github.io

Program Description

A Software Engineering Workshop for Astronomy

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Dan F-M @dfm.io · 25/12/2024

Now that I write code as a full-time job, I didn't think I would do adventofcode.com this year, but I couldn't stop myself. I just finished collecting all the stars, and it was great fun as always! Thanks for the fun ride, @was.tl!

adventofcode.com

Advent of Code 2024

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Dan F-M @dfm.io · 08/12/2024

When my kid was born, we were gifted all of those "Science X for Babies" books (IYKYK), and at 1.5 he has decided that they are the only books we ever read just to spite us… At least he reaches for "Bayesian Probability" more frequently than "Astrophysics", proving that he's my child! 🤣

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Adrian Price-Whelan @adrian.pw · 26/11/2024

We @flatironinstitute.org are hiring a research scientist (open rank) at the CCA! Our priority areas are (1) plasma, (2) cosmological surveys, (3) stellar theory, (4) machine learning in astro, and (5) software & statistical techniques for astro. Reach out if yr interested! 🔭 aas.org/jobregister/...

aas.org

Research Scientist (Open Rank), Center for Computational Astrophysics | American Astronomical Society

Position Summary The Center for Computational Astrophysics (CCA) is advertising an open-rank search for research scientists to join the Flatiron Institute at the Simons Foundation. The advertised posi...

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Bruce Macintosh @bmacastro.bsky.social · 01/12/2024

Prompted by this and a need for distraction I Did Some Math. Turns out most extrasolar planets are quite cauliflower-compatible. A thread, with citations. And laboratory astrophysics. And footnotes.

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Dan F-M @dfm.io · 11/04/2024

Some news: in a few weeks I'll be leaving the Flatiron Institute to join Google DeepMind where I'll be working on the JAX core dev team. It's bittersweet to leave astro which (for better or worse) has defined much of my identity for the past 15 years, but I'm excited about new adventures!

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Imad Pasha @prappleizer.bsky.social · 05/03/2024

Thrilled to announce an event I've long been thinking about! Join us at Yale University for a "Hack Day Conference," in which a group of educators come together to build resources and exercises for teaching research methods in astronomy. See astrocodex.github.io for more.

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Malena Rice @malenarice.bsky.social · 04/03/2024

Delighted to announce that the inaugural New York Area Exoplanets Meeting (NYAEM) will take place at the Center for Computational Astrophysics (CCA) on May 30th, 2024! Abstract submission is open until April 5th, & registration until May 1st. Find more information here: nyexoplanets.github.io 🔭🪐🧪

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Dan F-M @dfm.io · 26/02/2024

Reposting for the weekday crowd!

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Dan F-M @dfm.io · 24/02/2024

I'm not on the astro lists here... Please share this there if you are. Thanks!

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Dan F-M @dfm.io · 24/02/2024

Applications are open for the pre-doc program at the CCA! This program is for current astro grad students to come visit NYC for 5 months and collaborate with a CCA scientist on a research project. I ❤️ this program so much!! Please apply and/or share! www.simonsfoundation.org/flatiron-ins...

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Dan F-M @dfm.io · 19/02/2024

just found a jar of jam in our cupboard with a best before date of Feb 2020. that jam really is from a different era!

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Sarah Blunt, PhD 🇵🇸 @blunt-comma-s.bsky.social · 18/01/2024

Are you an astronomer or aspiring astronomer wanting to improve your software engineering skills? Applications for Code/Astro 2024 are open! More info at semaphorep.github.io/codeastro/. Application is linked at the bottom of that page. Apply by Feb 16!

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Dan F-M @dfm.io · 11/12/2023

Today's #AdventOfCode is coming for your Large Scale Structure research program! adventofcode.com/2023/day/11

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Dan F-M @dfm.io · 27/11/2023

adventofcode.com starts on Friday! 🚀 Advent of Code is a daily coding challenge Dec 1-25 that is fun in ways that I can't totally put my finger on. I normally use it as a way to learn a new language, but with a 5-month-old, I'm sticking to Rust again this time around: github.com/dfm/adventof...

github.com

GitHub - dfm/adventofcode: Holiday hacking because I'm a nerd

Holiday hacking because I'm a nerd. Contribute to dfm/adventofcode development by creating an account on GitHub.

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Dan F-M @dfm.io · 12/11/2023

I assume everyone deals with burnout by switching to a new code editor, right? [I'm going back to vim (actually neovim) after a few years in vscode land…]

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Dan F-M @dfm.io · 03/11/2023

My tutorial demonstrating how to implement custom C++ and CUDA ops for JAX (jax.readthedocs.io) was horribly out of date, but thanks to a few PRs it is now up to date with the current best practices: github.com/dfm/extendin...

github.com

GitHub - dfm/extending-jax: Extending JAX with custom C++ and CUDA code

Extending JAX with custom C++ and CUDA code. Contribute to dfm/extending-jax development by creating an account on GitHub.

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Dan F-M @dfm.io · 09/10/2023

Over at JOSS (joss.theoj.org) we're looking to recruit more editors in all areas! Check out the blog post for more info, and I'd be very happy to chat: blog.joss.theoj.org/2023/10/call...

blog.joss.theoj.org

Call for editors | Journal of Open Source Software Blog

Blog for the Journal of Open Source Software • <a href='https://joss.theoj.org'>https://joss.theoj.org</a>

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💀Adina Feinstein PhD 💀 @afeinstein20.bsky.social · 26/09/2023

super exciting that a potential 3rd transit of the elusive young planet V1298 Tau e was captured with CHEOPS, yielding a best-fit period of ~45 days! p.s. this is why I publish all data & models on GitHub, Zenodo, and use showyourwork! when publishing in AAS Journals

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Dan F-M @dfm.io · 20/09/2023

Speaking of hiring… don't forget about these two long-term astronomical software development roles with a deadline of Dec 1!

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Dan F-M @dfm.io · 20/09/2023

We're hiring postdoc fellowship positions at the Center for Computational Astrophysics! 3 year FRF: apply.interfolio.com/132546 5 year FSRF (focus on software development): apply.interfolio.com/132547 This is a great place to work & these are awesome jobs! Please share & reach out with questions!!

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Dawn Gelino @dawngelino.bsky.social · 06/09/2023

The 2024 Announcement of Opportunity for the NASA Hubble Fellowship Program (#NHFP) is now open! Interested scientists within 4 years of their PhDs should apply by Nov. 2; recommendation letters are due Nov. 9. Ask me if you have any questions! nexsci.caltech.edu/sagan/fellow...

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Sarah Pearson @spacewsarah.bsky.social · 05/09/2023

I’m hiring PhD students and postdocs to my new extragalactic stellar streams group U. Copenhagen. Please reach out if you have any questions and share this if you know anyone who might be interested. PhD link: jobregister.aas.org/ad/e9fe0095 Postdoc link: jobregister.aas.org/ad/8218d16b

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Dan F-M @dfm.io · 30/08/2023

Over at JOSS (joss.theoj.org) we're looking for two reviewers for a submission of a Python package for ML classification of gamma-ray bursts observed with Swift. Any volunteers or suggestions would be appreciated! More info on the pre-review thread: github.com/openjournals...

joss.theoj.org

Journal of Open Source Software

Journal of Open Source Software (JOSS) is a developer friendly, open access journal for research software packages.

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Suzanne Aigrain @airbornegrain.bsky.social · 30/08/2023

I'm here now! Thanks for sharing Dan

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Dan F-M @dfm.io · 29/08/2023

The official version of the Annual Review "Gaussian Process Regression for Astronomical Time Series", by Suzanne Aigrain (who doesn't seem to be here on bsky) and me, is now published and available (open access): www.annualreviews.org/doi/full/10....

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Dan F-M @dfm.io · 29/08/2023

After spending some time coding in languages with sensible type systems, I always come back to my Python projects with such naive enthusiasm about Python types, just to be reminded what a world of pain they are, especially for scientific libraries! 😢

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Dan F-M @dfm.io · 11/08/2023

🚨 Awesome job(s!) alert!! 🚨 The Center for Computational Astrophysics is hiring two software engineers to work on supporting community software projects (& other fun things)! Check out @adrian.pw's thread for more info & please share with anyone who might be interested. I'd be happy to chat!!

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Dan F-M @dfm.io · 11/07/2023

A happy customer from the other one! The link is to dfm.io/posts/intro-to-numpyro, which I am quite proud of…

A screenshot of a quote tweet saying "If you want to get started with NumPyro then @exoplaneteer's tutorial ([link here]) is much better than the documentation." The quoted tweet seems to mention something about tracing errors with the text "NumPyro is going great."

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Dan F-M @dfm.io · 05/07/2023

👋 Hi! I'm Dan (you might know me as 🐦/exoplaneteer). I'm an astronomer in New York City who mostly writes code to help other people do astronomy. Find more info here: dfm.io These days I'm on leave, spending my time teaching my little one about underappreciated rock climbing techniques…

A close up of a newborn baby's hand holding what seems to be a pink piece of rock climbing gear (for those who know, it is a "tricam")

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