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Dean Hartshorn

@dmhartshorn.bsky.social

Astronomer. Poet. Parent.

35 Followers  |  70 Following  |  7 Posts  |  Joined: 21.01.2025  |  2.2404

Latest posts by dmhartshorn.bsky.social on Bluesky

Preview
'Very difficult situation': Kristi Noem whines locals not letting ICE agents use restrooms Department of Homeland Security Secretary Kristi Noem complained that her agents were not being permitted to use restrooms in Chicago because of opposition from residents.During a Sunday interview on ...

Wow, it must be terrible being told that you can’t use the bathroom.

05.10.2025 17:39 β€” πŸ‘ 3083    πŸ” 571    πŸ’¬ 115    πŸ“Œ 43
A black and white photo of Cecilia Payne-Gaposchkin. She is sitting at her desk and looking up at the camera, which is in front of her and to her left. Payne-Gaposchkin is wearing a baggy, ribbed sweater and has a wristwatch on her right arm. A pair of glasses rests on the desk in front of her, next to open books and papers which are just visible at the bottom of the photogaph. Filing cabinets, drawers, and another desk are visible in the background. She has short, dark hair which is no longer than chin-length, pulled out of her face behind her left ear.

A black and white photo of Cecilia Payne-Gaposchkin. She is sitting at her desk and looking up at the camera, which is in front of her and to her left. Payne-Gaposchkin is wearing a baggy, ribbed sweater and has a wristwatch on her right arm. A pair of glasses rests on the desk in front of her, next to open books and papers which are just visible at the bottom of the photogaph. Filing cabinets, drawers, and another desk are visible in the background. She has short, dark hair which is no longer than chin-length, pulled out of her face behind her left ear.

β€œThere is no joy more intense than that of coming upon a fact that cannot be understood in terms of currently accepted ideas."

Astronomer Cecilia Payne-Gaposchkin, who decoded spectral lines to deduce the elemental composition of stars, was born #OTD in 1900. πŸ§ͺ πŸ”­ βš›οΈ πŸ‘©β€πŸ”¬

Image: Harvard Observatory

10.05.2025 18:02 β€” πŸ‘ 866    πŸ” 212    πŸ’¬ 8    πŸ“Œ 15

Disability justice means naming and actively combatting scapegoating, dehumanizing rhetoric, and ableism.

Disabled people deserve to thrive in joy and dignity.

23.09.2025 16:26 β€” πŸ‘ 80    πŸ” 31    πŸ’¬ 0    πŸ“Œ 0

Arrested because a white woman demanded he change the way he was sitting and when he didn’t, she complained to the conductor about his posture.

His posture.

22.09.2025 01:36 β€” πŸ‘ 1519    πŸ” 544    πŸ’¬ 32    πŸ“Œ 22
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Monarez: "Kennedy demanded 2 things of me that were were inconsistent w/ my oath of office. He directed me to commit in advance to approving every ACIP recommendation regardless of the scientific evidence. He also directed me to dismiss career officials responsible for vaccine policy without cause"

17.09.2025 14:39 β€” πŸ‘ 26429    πŸ” 10018    πŸ’¬ 648    πŸ“Œ 526

This story is beyond tragic. I hope the family can get answers about what really happened to Trey.

17.09.2025 03:16 β€” πŸ‘ 1126    πŸ” 220    πŸ’¬ 20    πŸ“Œ 4

i do not think it can be overstated at this point that we do not know who killed charlie kirk or why they did it.

11.09.2025 13:00 β€” πŸ‘ 5661    πŸ” 907    πŸ’¬ 121    πŸ“Œ 33

Delightful though the phrase is, there was no lesbian space crime.

11.09.2025 14:58 β€” πŸ‘ 93    πŸ” 42    πŸ’¬ 5    πŸ“Œ 11

Congratulations!! So excited to read it!

03.09.2025 20:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

After a long journey of many ups, downs and almosts, my first novel, Everyone Can't Be Wrong, will be published by Inanna Publications in Fall 2026.

#writer #debut #canlit

03.09.2025 16:49 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 4    πŸ“Œ 0

Faculty and students ARE the university.

02.09.2025 01:12 β€” πŸ‘ 31    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

journalists are being threatened and jailed. media outlets are paying settlements to THE PRESIDENT. but gosh golly gee, is democracy under threat? who can really say!

02.09.2025 01:30 β€” πŸ‘ 930    πŸ” 100    πŸ’¬ 15    πŸ“Œ 3

everyone get some rest so we can have energy for tomorrow’s horrors

02.09.2025 04:02 β€” πŸ‘ 2146    πŸ” 186    πŸ’¬ 30    πŸ“Œ 5

I like how this could plausibly be anything from "I am resigning after a stroke" to "the us is invading Venezuela" to "I am using a new kind of pen"

02.09.2025 04:28 β€” πŸ‘ 367    πŸ” 62    πŸ’¬ 8    πŸ“Œ 0

just so we're clear--israel admits they killed TWENTY PEOPLE including FIVE JOURNALISTS to destroy a CAMERA. not a person holding a camera. just a camera.

26.08.2025 16:52 β€” πŸ‘ 1165    πŸ” 280    πŸ’¬ 26    πŸ“Œ 16

Because the thing about trans sports is that those "necessary conversations" have already been happening for literal decades and those "legitimate questions" have answers, you just don't want to actually know what they are if the answers show that you should be supporting us.

23.07.2025 12:33 β€” πŸ‘ 484    πŸ” 82    πŸ’¬ 3    πŸ“Œ 7

Why are all of my work rectangles also my fuck around rectangles. These should be different rectangles.

13.07.2025 19:14 β€” πŸ‘ 1893    πŸ” 90    πŸ’¬ 63    πŸ“Œ 10

Second, they use electricity to do that, and electricity is much easier to decarbonize than fuels (which heating mostly uses.)

Third, because AC use happens in areas of the world with good solar power AND at times of the day with good solar power.

13.07.2025 19:28 β€” πŸ‘ 916    πŸ” 17    πŸ’¬ 9    πŸ“Œ 1

I'm so tired of being ashamed, embarrassed, and disappointed. And so very, very angry.

10.07.2025 01:17 β€” πŸ‘ 682    πŸ” 57    πŸ’¬ 25    πŸ“Œ 3
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Over 2,000 senior staff set to leave NASA under agency push The losses could endanger the administration’s plans for landing astronauts on the moon and Mars.

ALL CAPS

THIS IS CATASTROPHIC FOR SPACE SCIENCE AND ASTROPHYSICS ...

GLOBALLY CATASTROPHIC, NOT JUST FOR AMERICANS πŸ”­πŸ§ͺ

www.politico.com/news/2025/07...

09.07.2025 17:58 β€” πŸ‘ 1585    πŸ” 647    πŸ’¬ 55    πŸ“Œ 60

NASA is being told to cancel 19 *active* missions to save $6B, which looks to be less than the ICE *hiring/retention* budget going forward.

I need people to let that sentence sink into their bones for a minute.

29.06.2025 16:17 β€” πŸ‘ 4220    πŸ” 2126    πŸ’¬ 73    πŸ“Œ 90
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Hope and solidarity won tonight, and will win again in November.

Congratulations, @zohrankmamdani.bsky.social

25.06.2025 03:07 β€” πŸ‘ 35088    πŸ” 3827    πŸ’¬ 850    πŸ“Œ 300

Gambling with the next 50 years of US health, security, and prosperity. For nothing.

24.06.2025 23:35 β€” πŸ‘ 204    πŸ” 53    πŸ’¬ 9    πŸ“Œ 5

What is the point of having a constitution if it allows this? β€œHumans should not be subjected to torture” is an extremely basic principle that should never have to be explained or justified.

23.06.2025 21:33 β€” πŸ‘ 1482    πŸ” 221    πŸ’¬ 17    πŸ“Œ 5

Just thinking of the Harvard computer women a century ago, who looked at images of the universe like this by eye to make discoveries. They revolutionized astronomy, and Rubin definitely will too!

Also, wow how excited would Henrietta Leavitt and Williamina Flemming be to see this! 🀩

πŸ”­πŸ§ͺ🎒

23.06.2025 15:38 β€” πŸ‘ 295    πŸ” 52    πŸ’¬ 2    πŸ“Œ 1

the solar system data from Rubin is going to be amazing. I really hope I and a lot of other planetary scientists still have jobs when it really starts coming down from the main survey. Contact your elected officials to support the NSF and NASA and reject the current administration's budget requests!

23.06.2025 16:04 β€” πŸ‘ 311    πŸ” 87    πŸ’¬ 3    πŸ“Œ 1

Ideally, a country should be led by a person that understands that other people are real.

22.06.2025 00:20 β€” πŸ‘ 1983    πŸ” 391    πŸ’¬ 6    πŸ“Œ 11

β€’US Intel confirmed Iran has 0 nukes
β€’Iran never attacked USA
β€’Iran offered to revive nuclear deal
β€’Iran is a signature to NPT
β€’Iran allows full IAEA inspections

And ALL notwithstanding

β€’Trump had no approval from Congress

Trump has violated his Oath. If Congress had a spine they’d impeach him

22.06.2025 00:21 β€” πŸ‘ 4493    πŸ” 1623    πŸ’¬ 150    πŸ“Œ 83

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