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Exciting news! The Flatiron Institute Center for Computational Astrophysics is investing in MESA, the open-source suite revolutionizing how we model stars. With Philip Mocz on board as a full-time research software engineer, MESA’s future shines bright! simonsfoundation.org/2025/03/31/fla…

A chant I've never heard before: No Nazis! No kings! These are not American things I love that patriotism has become a thing at these protests. this is a deeply flawed country but it is OUR country and there are things in our history to be proud of

Open-source software suite MESA has transformed how researchers model the evolution of stars — and now, the Flatiron Institute is securing its future. Read more: simonsfoundation.org/2025/03/31/fla… #science #astrophysics

spinoff.nasa.gov/spinoff1999/ip… Good time to review of the optics spinoffs that have been enabled by investments in space telescopes. This one was for polishing methods and metrology that helped enable current EUV microlithography for chipmakers.

With Ralph Pudritz, I've been editing the section of the 2nd edition of the Handbook of Exoplanets focused on "Formation and Evolution of Planets and Planetary Systems". This thread collects together the contributions currently available on astro-ph: (1/5)

Finnegan Keller, Fei Dai & Wenrui Xu Flatiron Institute use an extensive set of damped N-body simulations to model the formation of resonant low-mass exoplanet systems. Decent agreement with data supports a convergent migration interpretation. arxiv.org/abs/2504.12596

Wrapping a great week of discussions at the CCA Flatiron Institute workshop on ML in planetary dynamics. Thanks everyone! A few personal takeaways: (1/4)

simonsfoundation.org/2025/04/29/fla… Direct evidence magnetar giant flares eject neutron star crust material capable of heavy element nucleosynthesis and associated kilonova-like signals . As the gamma-ray signal came from the 2004 giant flare, in some since this was the "first" kilonova.

Sabina Sagynbayeva, in work with Will M Farr Flatiron Institute, develops a hierarchical Bayesian model that can exploit multiple exoplanet transit light curves to better map stellar surfaces. (link in replies)

A lot of people have noticed it. In the past few years, a bunch of different infections in England have started moving together. Spikes, dips, rising and falling in sync.

1/ This graph from Jon Bruner tells an important story: America's current dominance in science only began after the mid-1930s, when persecuted scientists began fleeing universities in Germany and then elsewhere in occupied Europe.

This graphic of Trump’s cuts to NASA’s research fleet is insane. Why do this? Who wants this? Who was complaining we were exploring space too much? The only principle seems to be “if it can’t go directly into Trump or Musk’s own pockets, dump it in the trash.”

Yeah seeing this a lot. It doesn’t happen. We will not get regular Space Telescopes, or Dragonfly etc.. The Mars plans of SpaceX are born out of a fierce rejection of the profit motive (a point I don’t see mentioned enough) and why they must remain private. The government,

This is a highly informative, well-researched piece on 2500 NIH grants that were terminated or delayed (i.e. frozen) under the current administration and the deleterious impact to the study and prevention of chronic and infectious diseases. nytimes.com/interactive/20…

Last week, NASA and NSF released their FY26 budget requests. We list the detailed impacts on the astronomical sciences in this blog post, and share how you can take action today. aas.org/posts/news/202…

After the shock will come anger.

Having our government looking and acting like an occupying army is horrific and not something we should get used to.

Rep. Gomez: LA County alone is 34% foreign born, 34%. So when he says they're going to liberate us, who is he going to liberate us from? Ourselves?

This week, we celebrated the graduation of the second cohort of students in the Astrophysics master’s program at the CUNY Graduate Center! Learn more about this joint program with #FlatironCCA: gc.cuny.edu/astrophysics #science #astrophysics

.Brad Lander has been doing escort work with Jews for Racial & Economic Justice Action *week after week* to protect our immigrant neighbors. Today was not the first day.