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Julianne Dalcanton

@dalcantonjd

Astrophysicist at the Center for Computational Astrophysics & U. Washington.

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Latest posts by Julianne Dalcanton @dalcantonjd

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2026 Flatiron Institute Center for Computational Astrophysics Pre-Doctoral Program How to Apply 2026 Flatiron Institute Center for Computational Astrophysics Pre-Doctoral Program How to Apply on Simons Foundation

Applications are open for our visiting grad student pre-doctoral program at the CCA @flatironinstitute.org !

More info here:
www.simonsfoundation.org/2023-flatiro...

02.03.2026 18:10 πŸ‘ 14 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0

If you have the means, please donate to the Trans Continental Pipeline right now. They are a Colorado based org that helps trans people relocate and they are overwhelmed with requests. Colorado borders Kansas, and TCP has the infrastructure to help get people out.

tcpipeline.org

26.02.2026 04:17 πŸ‘ 7889 πŸ” 8570 πŸ’¬ 1 πŸ“Œ 107

The world could be such a nice place if we allowed it. It's all so goddamn unnecessary. There's no need for any of it. It's so beautiful here. It should be so cool to be alive

28.02.2026 12:42 πŸ‘ 16329 πŸ” 5056 πŸ’¬ 126 πŸ“Œ 103

Thinking more about this, which is exactly right. I think this is a huge opportunity for public university faculty organizing. Active education campaigns. Shared tools for analyzing and projecting impacts of funding models. Recruiting & training at least one budget advocate per department.

27.02.2026 01:42 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Faculty have essentially two choices: (1) learn in painstaking detail how resources flow through your institution and how budgets work or (2) complain as you are cut to the bone and then broken. You’d be shocked at how many administrators and faculty do not understand their budget model.

26.02.2026 14:35 πŸ‘ 201 πŸ” 44 πŸ’¬ 4 πŸ“Œ 2

Perfectly said.

20.02.2026 16:40 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β€œalmost”

20.02.2026 16:00 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Several years ago I walked past a cake left out in the rain, and it basically made my year.

20.02.2026 04:06 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
PROTECT YOUR NYC NEIGHBORS FRIDAY 2/20 TO SUNDAY 2/22
Host or attend a community event designed to protect your neighborhoods from ICE. Sign up at HandsOffNYC.com

PROTECT YOUR NYC NEIGHBORS FRIDAY 2/20 TO SUNDAY 2/22 Host or attend a community event designed to protect your neighborhoods from ICE. Sign up at HandsOffNYC.com

NYC: Next weekend (2/20 - 2/22), Hands Off NYC is holding tons of community events across the city where you can help hand out resources (e.g., whistles, KYR info) and support mutual aid groupsβ€”all designed to protect your neighbors from ICE.

Sign up to host or attend at HandsOffNYC.com/community.

15.02.2026 20:20 πŸ‘ 332 πŸ” 130 πŸ’¬ 8 πŸ“Œ 6
Illustration of masked ICE agent getting sprayed fire hydrant with text β€œICE OUT OF NEW YORK”

Illustration of masked ICE agent getting sprayed fire hydrant with text β€œICE OUT OF NEW YORK”

Come make anti-ICE signs and banners with us by signing up at HandsOffNYC.com/build.

18.02.2026 12:39 πŸ‘ 211 πŸ” 49 πŸ’¬ 4 πŸ“Œ 0

If you see this post a Star Trek

16.02.2026 23:45 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 4

"reward of the young scientist is the emotional thrill of being the first person in the history of the world to see something or to understand something. Nothing can compare with that experience...Reward of the old scientist is the sense of having seen a vague sketch grow into a masterly landscape."

15.02.2026 20:46 πŸ‘ 12 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0

Astronomer Eric Wilcots to become interim chancellor of UW-Madison! πŸ”­

15.02.2026 03:25 πŸ‘ 23 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

A friend summed it up as reverse Flowers for Algenon.

15.02.2026 14:36 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Hormone replacement therapy reinstalled my brain. After 5 years, I tried going off it for a bit to see how I did and NOPE. Not advisable for some medical histories, unfortunately, but life changing for me. Just tossing that out there in case anyone reading this was on the fence about trying it.

15.02.2026 14:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I worked really hard to find a set of Matplotlib scalings that that would do the images justice, and reproduce the vibe of the original. bsky.app/profile/mast...

10.02.2026 20:30 πŸ‘ 4 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

I got a copy when Jerry Kristian (a real mensch) passed away, and had the same experience. It started a lifetime obsession that ended with this. bsky.app/profile/dalc...

10.02.2026 20:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Benito is a threat b/c he makes art so alluring and enjoyable you want to understand everything about it and then you end up learning about sugar and slavery and colonialism and the TaΓ­nos and Hawaii and then you probably have some thoughts of your own, and that's why art is powerful and dangerous

09.02.2026 01:38 πŸ‘ 20661 πŸ” 5279 πŸ’¬ 108 πŸ“Œ 179

Extremely good analogy. The endgame for AI companies is that everyone becomes dependent on their tech, and has to keep paying $2000 / year to write software.

High-quality software is not actually necessary to achieve that goal.

07.02.2026 11:09 πŸ‘ 63 πŸ” 24 πŸ’¬ 2 πŸ“Œ 0

No kidding!
You use AI for your work just once, and for the rest of your life people will look at your work and wonder if you really did it, or if it was AI.
Not worth it.

06.02.2026 21:40 πŸ‘ 62 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0

The composers are straight out of the Severence waffle party.

06.02.2026 19:32 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The sheer joy I felt just now discovering that there is a new Dan Foreman Mackey video about JAX.

06.02.2026 18:03 πŸ‘ 11 πŸ” 2 πŸ’¬ 3 πŸ“Œ 0
Video thumbnail

Highlighting the speaker who stood in front of the Surprise mayor and told him to consider what the Mayor of Ohrdruf must’ve thought before he died by suicide: β€œHe might have thought β€˜how is this my fault I had no jurisdiction over this’ maybe he said β€˜this site was not subject to local zoning.’”

04.02.2026 06:43 πŸ‘ 8769 πŸ” 3821 πŸ’¬ 165 πŸ“Œ 792
The lead author's position on using AI tools in research and writing can be summarized
as: use them as you would use a colleague.
They can help with brainstorming, literature review, and organizing ideas, but the core
intellectual work, derivations, and writing should be done by the authors themselves.
As such, this work made use of Claude (Anthropic) as a tool to help provide entrypoints
into the relevant literature and to help brainstorm the scope and outline of this
work.
All text was written by the authors, all derivations were done by the authors, and the
associated code was developed using GitHub copilot as an assistant.

The lead author's position on using AI tools in research and writing can be summarized as: use them as you would use a colleague. They can help with brainstorming, literature review, and organizing ideas, but the core intellectual work, derivations, and writing should be done by the authors themselves. As such, this work made use of Claude (Anthropic) as a tool to help provide entrypoints into the relevant literature and to help brainstorm the scope and outline of this work. All text was written by the authors, all derivations were done by the authors, and the associated code was developed using GitHub copilot as an assistant.

Working on my first FA paper in the era of LLM, so it was important to me to develop a position on how I want to use them in my work. IMO it makes sense to acknowledge and state how these tools were used! But I suspect many are using without limits or a position on how...

02.02.2026 17:19 πŸ‘ 7 πŸ” 2 πŸ’¬ 1 πŸ“Œ 2

At first I thought it might be this crew, but no. bsky.app/profile/dalc...

01.02.2026 14:24 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 2
Preview
Here is the User Guide for ELITE, the Tool Palantir Made for ICE 404 Media is publishing a version of the user guide for ELITE, which lets ICE bring up dossiers on individual people and provides a β€œconfidence score” of their address.

A manual for ICE's immigrant-targeting computer system, Palantir ELITE, was leaked today.

Let's look at it, then step back to evaluate how far we've come along a dangerous road and where that road might take us. 🧡

31.01.2026 03:37 πŸ‘ 2569 πŸ” 1622 πŸ’¬ 53 πŸ“Œ 168

These were the people who held the careers of female scholars in their hands . This is who was shaping or epistemological world

31.01.2026 17:14 πŸ‘ 1921 πŸ” 582 πŸ’¬ 17 πŸ“Œ 6

I get tired of saying it, but I’ll say it again: the nature of oppression in America is that they workshop it first on Black, Latino, Asian & Native people.

But it is always, in the end, coming for everyone.

30.01.2026 16:46 πŸ‘ 15707 πŸ” 5620 πŸ’¬ 240 πŸ“Œ 127

Bondi directed federal agents to arrest four journalists.

Georgia Fort, Don Lemon, Jamael Lundy, and Trahern Crews.

All Black. All doing their jobs.

30.01.2026 16:17 πŸ‘ 6085 πŸ” 2576 πŸ’¬ 80 πŸ“Œ 90