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Sam Dunham

@astrodunham.bsky.social
201 followers 118 following 133 posts

Ramp enthusiast, Black Lives Matter, free Palestine, advocate for animal welfare and US prison reform

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Reposted by Sam Dunham
Michael Zingale @michaelzingale.bsky.social · 15/10/2025
join us today for the Virtual Astronomy Software Talks (VAST) seminar: vast-seminars.github.io @emily.space will tell us about building astronomy communities #astro #astrocode
vast-seminars.github.io
Virtual Astronomy Software Talks
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sanjana! @sanjanacurtis.bsky.social · 14/10/2025
Come join us at a fantastic physics department in the great PNW! The Oregon State University Department of Physics is looking to hire a tenure-track faculty in theoretical/computational condensed matter physics. Full consideration deadline: November 5th, 2025. jobs.oregonstate.edu/postings/173...
jobs.oregonstate.edu
Assistant/Associate/Full Professor (Physics)
The Department of Physics at Oregon State University (OSU) is seeking an Assistant, Associate, or Full Professor. This is a full-time (1.00 FTE), 9-month, tenure/tenure-track faculty position.Any hiri...
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Michael Zingale @michaelzingale.bsky.social · 17/09/2025
today the new season of the Virtual Astronomy Software Talks kicks off: vast-seminars.github.io Some of the organizers will talk about their own projects this time. Join us at 11am (NY time). #astro #astrocode
vast-seminars.github.io
Virtual Astronomy Software Talks
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Sam Dunham @astrodunham.bsky.social · 07/08/2025
The only time I ever see a post from truth social is when it’s a screenshot of one of trump’s messages. I like the idea that he is literally the only person that posts there and the feed is just a list of his ramblings
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Reposted by Sam Dunham
Philipp Mösta @handle.invalid · 05/08/2025
One more paper from the group out arxiv.org/abs/2508.00062 🎉 Led by Lieke Sippens Groenewegen, who finished her MSc in my group @grappainstitute.bsky.social in February, and with @sanjanacurtis.bsky.social we developed an end-to-end pipeline for kilonova lightcurves and spectra #highenergyastro 🔭🧪
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Philipp Mösta @handle.invalid · 27/06/2025
To kick off here on bluesky I wanted to share some recent work from the group. First off arxiv.org/abs/2504.11537, the first science paper produced with our new GPU-accelerated GRMHD code GRaM-X.
arxiv.org
3D full-GR simulations of magnetorotational core-collapse supernovae on GPUs: A systematic study of rotation rates and magnetic fields
We present a series of fully three-dimensional, dynamical-spacetime general relativistic magnetohydrodynamics (GRMHD) simulations of core-collapse supernovae (CCSNe) for a progenitor of zero-age-main-...
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The Old SwitchAroo @theoldswitcharoo.bsky.social · 16/07/2025
In the newest episode of The Old SwitchAroo, Nate Brown (NateBlackest on Twitch) joins us for Blast Corps, the 1997 action-destruction game for the Nintendo 64. Find it anywhere that you get your podcasts! 🎮
An NES cartridge with a label that reads "The Old SwitchAroo" and "Blast Corps" with an illustration of two robots from Blast Corps and one remote controlled car. The additional text below the label reads "-or- I've Heard of a Crash Course, but this is ridiculous" and the text to the side reads "with Nate Brown"
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Sam Dunham @astrodunham.bsky.social · 11/07/2025
My first feeling is pride. We’ll see if that feeling is still there tomorrow
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Sam Dunham @astrodunham.bsky.social · 11/07/2025
What game do you play with your female dog in summer? Tick-or-teat
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Ethan Vishniac 🇺🇦🇨🇦🇺🇸 @ethan-vishniac.bsky.social · 24/06/2025
youtu.be/kBLkQIi3S18 🔭 AAS Journal Author Series: Amber Young on 2024PSJ.....5....7Y Amber Young (Northern Arizona University, NASA Goddard Space Flight Center) chats about her article on Earthlike exoplanets.
youtu.be
AAS Journal Author Series: Amber Young on 2024PSJ.....5....7Y
YouTube video by AAS
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Sam Dunham @astrodunham.bsky.social · 15/06/2025
I had this exact same thought when I saw it
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Dr. Jessie Christiansen @aussiastronomer.bsky.social · 09/06/2025
Some fun news to interleave in your TLs - the Exoplanet Follow-up Observing Program is an open sandbox for the astronomy community to collaborate on confirming and characterizing planets. It's totally voluntary, but apparently, if you build it, they will come! www.ipac.caltech.edu/news/exoplan...
ipac.caltech.edu
Exoplanet discovery database, ExoFOP, reaches 1 million files and counting
Discovering an exoplanet doesn’t mean having one, definitive eureka moment. Instead, it requires multiple observations, sometimes from multiple observatories, and the scientific community coming toget...
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Sam Dunham @astrodunham.bsky.social · 03/06/2025
Vegan milksteak
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Dr. Skylar Grayson @skylargrayson.bsky.social · 29/05/2025
"Why should my tax dollars go to fund your astrophysics research?" A thread. 🔭🧪 Brushing aside how absurdly little of the federal budget goes to science (according to the Planetary Society NASA accounts for only 0.3% of federal spending), the benefits of funding astronomy fall into two camps. (1/n)
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 20/05/2025
DO YOU WANT TO HELP PALESTINIAN PHYSICS STUDENTS THIS SUMMER? ⚛️🧪 Donate here: www.gofundme.com/f/support-pa...
gofundme.com
Donate to Support Palestinian Science with Scientists for Palestine, organized by Mario Martone
Scientists for Palestine's 2025 campaign to support Palestinia… Mario Martone needs your support for Support Palestinian Science with Scientists for Palestine
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Michael Tremmel @michaeltremmel.bsky.social · 08/05/2025
Hey I’m hiring a 4-year PhD student in #astronomy at UCC to work on studying massive black holes in cosmological simulations! Fast turn around on this bc it is so late (due 6 June) but please pass on to any interested and qualified students! Feel free to dm/email me! 🔭🧪 www.ucc.ie/en/astro/job...
ucc.ie
Job Opportunities | University College Cork
Learn, Study and Research in UCC, Ireland's first 5 star university. Our tradition of independent thinking will prepare you for the world and the workplace in a vibrant, modern, green campus.
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Sam Dunham @astrodunham.bsky.social · 27/04/2025
A haiku: Was gonna go out Laid down and took a quick nap Not gonna go out
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Sam Dunham @astrodunham.bsky.social · 17/04/2025
My hometown made international news! www.theguardian.com/us-news/2025...
theguardian.com
‘Book brigade’: US town forms human chain to move 9,100 books one-by-one
A small Michigan community banded together to help a beloved local bookstore move its stock to a new storefront
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Sam Dunham @astrodunham.bsky.social · 17/04/2025
Absolutely the route. A very common question here (maybe elsewhere too) when people get together is “so, which way’d you come?”. It’s almost like an ice breaker
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Sam Dunham @astrodunham.bsky.social · 17/04/2025
Midwesterners don’t want walkable cities because otherwise they wouldn’t know how to start a conversation with someone who just arrived
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Sam Dunham @astrodunham.bsky.social · 16/04/2025
www.bbc.com/news/article...
bbc.com
US judge rules he could hold Trump administration in contempt
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Michael Zingale @michaelzingale.bsky.social · 16/04/2025
today's Virtual Astronomy Software Talks seminar: * Devarshi Choudhury (UvA): X-PSI—neutron star X-ray Pulse Simulation and Inference. * Matthieu Schaller (Lorentz Institute): SWIFT—SPH with Interdepednent Fine-grained Tasking in ~2.5 hours (11am NY) vast-seminars.github.io #astro #astrocode
vast-seminars.github.io
Virtual Astronomy Software Talks
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Sam Dunham @astrodunham.bsky.social · 09/04/2025
Does anyone know if this EO furthers Yarvin’s plans? Is it increased isolationism or is it just unrelated? www.whitehouse.gov/presidential...
whitehouse.gov
Protecting American Energy From State Overreach
By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered: Section 1.  Purpose.
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Sam Dunham @astrodunham.bsky.social · 09/04/2025
I feel like the new EO has a lesson about tariffs
Snippet from the latest executive order on domestic energy production reading: “For example, when States target or discriminate against out-of-State energy producers by imposing significant barriers to interstate and international trade, American energy suffers…”
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Courtney Milan @courtneymilan.com · 03/04/2025
I've finished my extremely basic normie tariff discussion. Here's what it looks like.
WHAT YOU NEED TO KNOW ABOUT TRUMP’S TARIFFS
The quick version.
On April 2, Trump announced sweeping tariffs on every country except Russia, North Korea, Cuba,
and Belarus. Tariffs are a tax that are paid by the importer when goods enter our country. Prices on
everyday items will increase radically and responsive tariffs will harm US businesses. Ask your
federal representatives (numbers at reps.fyi) to revoke Trump’s ability to apply tariffs.
Who pays tariffs?
The country of origin does not pay tariffs. Whoever is importing the goods in the US pays the tariff,
and passes the cost along to regular consumers—in other words, we, the people will pay the tariff.
How did Trump calculate his tariffs?
Trump’s tariff sheet claims that countries charge the US exorbitant tariffs. This is a lie. The number he
lists has nothing to do with tariffs, but is instead a trade deficit ratio, calculated as the dollar amount
we import from that country divided by the amount we export to that country.
What is the difference between a trade deficit and a tariff?
Trade deficits are not tariffs. We buy more from some countries than they buy from us because many
Americans have disposable income and purchasing power. It is not possible, or beneficial, for
countries to have perfectly balanced imports and exports.
What impact will this have on your life?
You will pay more for everything you buy, and American businesses will lose overseas customers.
The last time America passed sweeping tariffs was in 1930; this is part of what made the Great
Depression last so long. Trump’s tariffs are higher than the failed 1930 tariffs.
Who is responsible?
• Donald Trump and his cabinet for imposing the tariffs.
• Every Senator and Representative who fails to block Trump’s tariffs.
What can you do?• Contact your Senators and Representative (info at http://reps.fyi), and ask them to revoke the
so-called national emergency that Trump is using to impose these tariffs.
• Distribute this fact sheet so that people know who is responsible and how to join in.
• Join a protest against Trump’s damaging policies.
Sources for these claims & this sheet itself can be freely
downloaded at TrumpsTariffsExplained.com
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Sam Dunham @astrodunham.bsky.social · 06/04/2025
I agree with everything you say, except that I didn’t give a definition of caring. I just said not posting isn’t not caring, and not posting also doesn’t mean no action
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Sam Dunham @astrodunham.bsky.social · 06/04/2025
I have an admittedly very small network, but I’ve never heard anyone say posting about Palestine is worthless
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Sam Dunham @astrodunham.bsky.social · 06/04/2025
Retaliation from tr*mp is one obvious reason (and that of all the big scicomm accounts you singled out an immigrant woc is why I posted), but there are likely more.
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Sam Dunham @astrodunham.bsky.social · 06/04/2025
I agree it’s a deliberate choice, but you have no idea what’s happening in the vast majority of their lives. Have you asked any of them why they haven’t shared these posts?
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Sam Dunham @astrodunham.bsky.social · 06/04/2025
Why do you say they don’t care? Not posting about something doesn’t mean not caring about it
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Sam Dunham @astrodunham.bsky.social · 05/04/2025
How do folks learn about rallies near them? Maybe I just missed it but I don’t remember seeing anything about the hands off rally today
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Sam Dunham @astrodunham.bsky.social · 27/03/2025
On the up side I just learned the hands down easiest way to make a perfect hollandaise sauce. On the down side I just ate a whole stick of butter over chicken and noodles and spinach
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Reposted by Sam Dunham
Ros Taylor @rostaylor.bsky.social · 20/03/2025
Are you a US scientist thinking of quitting the States for Europe? Would you be willing to talk about it — anonymity is possible? Send me a DM. (Please reskeet if you have US contacts!)
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American Library Association @amlibraryassoc.bsky.social · 15/03/2025
🚨NEW🚨: Donald Trump is attempting to strip away federal support for libraries. We will NOT let that happen. Last night the President signed an order to gut the Institute of Museum & Library Services. But together, we know we can show up & defeat it. Full EO: www.whitehouse.gov/presidential...
Show Up For Our Libraries! By eliminating the only federal agency dedicated to funding library services, the Trump administration's Executive Order is cutting off at the knees the most beloved and trusted of American institutions and the staff and services they offer. ALA American Library Association. #ForOurLibraries
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Sam Dunham @astrodunham.bsky.social · 16/03/2025
chng.it/PYfqc8TQ5P
chng.it
Sign the Petition
Boycott Contributions to Senate Democrats Until Chuck Schumer Steps Down
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Sam Dunham @astrodunham.bsky.social · 16/03/2025
No, or dust contamination
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 16/03/2025
This should be getting wider circulation
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Sam Dunham @astrodunham.bsky.social · 16/03/2025
*At a WH press conference* Me: I have more of a comment than a question
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Sophia Gad-Nasr @astropartigirl.bsky.social · 15/03/2025
Oh. My. Wow. This image here, THIS STUNNING PHOTO, was taken by Blue Ghost on the Moon. Because while we saw a lunar eclipse on Earth, the Moon saw a solar eclipse at the same time. That's us, Earth, eclipsing the Sun. And it just gives me goosebumps to see like this!!
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Sam Dunham @astrodunham.bsky.social · 13/03/2025
I get real “pigs in a farmhouse” vibes
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Astronomy Picture of the Day 🪐 @apod.shinyakato.dev · 09/03/2025
🔭 Cyclones at Jupiter's North Pole Image Credit: NASA, JPL-Caltech, SwRI, ASI, INAF, JIRAM apod.nasa.gov/apod/ap25030...
The image shows the north pole of Jupiter in red (infrared) light. Many cyclonic swirls surround the pole. Please see the explanation for more detailed information.
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Abra / Jessica Conwell, Carmella Creeper's Gender Doula🏳️‍⚧️ 🇲🇽🌼 @pairofclaws.bsky.social · 10/03/2025
I know a lot of people are boycotting Amazon, which is great, but it's hurting a lot of trans authors. Trans authors: Drop links to your NON-AMAZON book listings/storefronts. Cis people: Repost, boost, and, importantly, buy. Part of boycotting an evil corporation is supporting the alternatives.
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Sam Dunham @astrodunham.bsky.social · 01/03/2025
My sister in law is a graphic designer. She designed the logo for our code and would probably be interested! Lmk and I can dm you her contact info
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Sam Dunham @astrodunham.bsky.social · 19/02/2025
Please join us Wednesday, February 19 at 11am Eastern time for another installment of VAST! We have two great speakers: Rhys Taylor will be talking about FRELLED and Marc Pound will be talking about PDR Toolbox. Hope to see you there!
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Sam Dunham @astrodunham.bsky.social · 03/02/2025
After googling hex colors for sonic and super sonic, and using a tool online that converts hex colors to wavelengths, it seems like if super sonic ran at 0.25c then he would appear sonic blue. That number seemed low to me, but who knows
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Sam Dunham @astrodunham.bsky.social · 02/02/2025
Oh! Taking this a little further, the measured length, L, is related to the proper length, L0, by L = sqrt( 1 - v^2 ) * L0, which means that Lobs = sqrt( ( 1 + v ) / ( 1 - v ) ) * L0. It's actually just doppler shift
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Sam Dunham @astrodunham.bsky.social · 02/02/2025
I've convinced myself that Sonic would look stretched out. Since he's moving, by the time the light from his back gets to his front, he has covered some distance. That will make him appear stretched out. His observed length, Lobs, and his measured length, L, are related by Lobs = L / ( 1 - v )
A spacetime diagram showing Sonic the hedgehog's head at three times: once when light from the back of his head heads toward the observer, once (at a later time) when light from his nose heads towards the observer, and once showing how his head appears stretched out to the observer.
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 31/01/2025
In light of this deeply illegal activity at NSF and the ongoing attack on American science, I'm posting the slides from my 2017 talk at the American Physical Society about the Nazi take over of German physics/why German is no longer science's lingua franca 🧪 🧵 1/26 drive.google.com/file/d/1_MCm...
nazi germany & physics
Chanda Prescod-Weinstein, PhD
Department of  Physics,University of Washington, Seattle
APS April Meeting, January 2017
Dismantling the (Nazi) German Nuclear Reactor (Pile) at Haigerloch, 50 km SW of Stuttgart, in April 1945
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