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Mark Popinchalk

@markpopinchalk.bsky.social

Astrophysics postdoc at AMNH | writer for @astrobites.bsky.social | planetarium presenter | Likes ultimate frisbee, volleyball, and all kinds of games. He/Him

1,178 Followers  |  190 Following  |  283 Posts  |  Joined: 26.07.2023
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Posts by Mark Popinchalk (@markpopinchalk.bsky.social)

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Netflix Backs Out of Bid for Warner Bros., Paving Way for an Ellison Takeover

The richest man owns X.

The second and third richest men control Google.

The fourth richest man owns Facebook, Instagram, and WhatsApp.

The fifth richest man owns The Washington Post.

And now the sixth richest could soon take over both Paramount and Warner Bros.

See the problem here?

26.02.2026 23:40 β€” πŸ‘ 38908    πŸ” 16510    πŸ’¬ 1827    πŸ“Œ 1081
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This week's cover @thelancet.com

26.02.2026 23:48 β€” πŸ‘ 3111    πŸ” 1457    πŸ’¬ 44    πŸ“Œ 80
I'm not entirely sure how they did it, but they've completely cleared the streets around my office in Midtown #NYC.

I'm not entirely sure how they did it, but they've completely cleared the streets around my office in Midtown #NYC.

They paid a lot of people good wages to do the job effectively, thank you for coming to my socialism talk

24.02.2026 12:38 β€” πŸ‘ 15630    πŸ” 2746    πŸ’¬ 0    πŸ“Œ 1

This is such a bad idea you could make a whole episode of a science comedy talkshow about it. πŸ”­πŸ§ͺ

23.02.2026 15:02 β€” πŸ‘ 13    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Mar 12, Science Tonight! : Space Junk, 9:30 pm

Mar 12, Science Tonight! : Space Junk, 9:30 pm

Next month the show is about Space Junk!

IRL + livestream options www.caveat.nyc/events/scien...

13.02.2026 18:30 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
8 smiling faces of the cast and crew hold up a puppet reminiscent of the Sand Worm from Dune with the eyes of RFK jr attached to it

8 smiling faces of the cast and crew hold up a puppet reminiscent of the Sand Worm from Dune with the eyes of RFK jr attached to it

Science Tonight! LIVE: From the Heart was incredible, we defeated RFK jr's Misinformation Brain Worm! πŸ§ͺπŸ”­

13.02.2026 18:30 β€” πŸ‘ 11    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

This article is incredibly damning of RFK Jr., as every single thing about him including his own actions and speeches and existence is.

13.02.2026 17:16 β€” πŸ‘ 109    πŸ” 27    πŸ’¬ 2    πŸ“Œ 2
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This is the aftermath of an ICE kidnapping a few blocks from my home in St. Paulβ€”an hour ago. A quiet street full of broken glass and at least three wrecked cars. The target of the kidnapping was taken away by ambulance. He was on a stretcher and covered by a sheet, though a cop said he was alive.

11.02.2026 16:46 β€” πŸ‘ 11390    πŸ” 6559    πŸ’¬ 274    πŸ“Œ 626
Science, Tonight! - A peer-reviewed comedy talkshow The peer-reviewed comedy talkshow where science comes to life!

livestream and IRL tickets can be found here!
www.caveat.nyc/events/scien...

11.02.2026 18:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The next epsiode of my science comedy talkshow is tomorrow, and it is LIVE: From Inside the Heart!

πŸ§ͺπŸ”­

11.02.2026 18:24 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Top of the photo in white text reads: "BREAKING OVER 680 NATIONAL ACADEMY OF SCIENCES MEMBERS, INCLUDING 10 NOBEL PRIZE LAUREATES, ENDORSE IMPEACHING RFK JR." Below that in black text is a statement reading: "We, the undersigned Members of the National Academy of Medicine, the National Academy of Sciences, and the National Academy of Engineering, writing in our private capacities, endorse the Articles of Impeachment introduced in the House of Representatives on Dec 10, 2025 by Representative Haley Stevens." Below that is the red "STAND UP FOR SCIENCE " logo. Below that is a link in white text reading: "standupforscience.net/impeach-rfkjr".

Top of the photo in white text reads: "BREAKING OVER 680 NATIONAL ACADEMY OF SCIENCES MEMBERS, INCLUDING 10 NOBEL PRIZE LAUREATES, ENDORSE IMPEACHING RFK JR." Below that in black text is a statement reading: "We, the undersigned Members of the National Academy of Medicine, the National Academy of Sciences, and the National Academy of Engineering, writing in our private capacities, endorse the Articles of Impeachment introduced in the House of Representatives on Dec 10, 2025 by Representative Haley Stevens." Below that is the red "STAND UP FOR SCIENCE " logo. Below that is a link in white text reading: "standupforscience.net/impeach-rfkjr".

BREAKING: Over 680 members of the National Academy of Sciences, Medicine, and Engineering have endorsed articles of impeachment against RFK Jr.
(1/2 🧡)

05.02.2026 21:08 β€” πŸ‘ 6529    πŸ” 2168    πŸ’¬ 69    πŸ“Œ 94

turns out when Bezos suggested "democracy dies in darkness" it was a goal, not a slogan

04.02.2026 15:27 β€” πŸ‘ 1052    πŸ” 294    πŸ’¬ 20    πŸ“Œ 15

Everybody has it backwards.

Billionaires aren’t buying up these institutions to make money. They’re buying them to kill them. Same as the oligarchs destroying government and social programs and things like weather forecasting and regulatory bodies.

They’re creating a world they control completely

04.02.2026 15:47 β€” πŸ‘ 2810    πŸ” 958    πŸ’¬ 52    πŸ“Œ 70

I'm just a humble astronomer, but I don't think one person should have more dollars than there are stars in the galaxy

03.02.2026 16:18 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

My favorite thing in my intro astro class is explaining how small an arc second even is. Micro arcseconds (even ten of them) is bonkers!

01.02.2026 20:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Thousands of people filled the streets of downtown Minneapolis in protest of federal immigration enforcement for the second consecutive Friday.

πŸ“·οΈ: Aaron Lavinsky

30.01.2026 21:42 β€” πŸ‘ 18086    πŸ” 5860    πŸ’¬ 182    πŸ“Œ 329

Hey now, it's winter. We're all a little "bottom-heavy" right now

30.01.2026 22:07 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
US court allows ICE to arrest and pepper-spray peaceful protestors in Minnesota

US court allows ICE to arrest and pepper-spray peaceful protestors in Minnesota

Appeals Court Stays Restrictions on Federal Tactics in Minnesota
The Eighth Circuit granted the Trump administration’s request to block, at least for now, a lower court’s injunction limiting how federal agents interact with protesters in the state.

Appeals Court Stays Restrictions on Federal Tactics in Minnesota The Eighth Circuit granted the Trump administration’s request to block, at least for now, a lower court’s injunction limiting how federal agents interact with protesters in the state.

One court decision, two different headlines.

Guardian on the left, NY Times on the right. Which one more directly conveys information and the stakes to the reader?

22.01.2026 03:30 β€” πŸ‘ 6337    πŸ” 2086    πŸ’¬ 133    πŸ“Œ 112
SCIENCE, TONIGHT! - a peer-reviewed comedy talkshow | Episode 1, Season 1
YouTube video by Mark Popinchalk SCIENCE, TONIGHT! - a peer-reviewed comedy talkshow | Episode 1, Season 1

Full Episode 1 is here, and Season 2 has begun! See it live on strem or IRL every second thursday of the month in 2026!

youtu.be/TbPcN67Sar4

15.01.2026 19:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The climactic conclusion of Science Tonight Episode 1! πŸ§ͺπŸ”­

15.01.2026 19:00 β€” πŸ‘ 9    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

This is your chance to tell the NSF how to fix itself.

Say no to the grift of AI datacenters. Say no to putting "quantum" where it has no business. Say no to false metrics. Say no to biotech scams.

Say yes to sustained investments. To fundamental science. To flagship facilities. To STEM education.

13.01.2026 21:00 β€” πŸ‘ 89    πŸ” 17    πŸ’¬ 0    πŸ“Œ 1
Science, Tonight! - A peer-reviewed comedy talkshow The peer-reviewed comedy talkshow where science comes to life!

It's tomorrow Jan 8 and tickets for Stream or IRL are here! ($5 off with "SCITONIS2")

www.caveat.nyc/events/scien...

07.01.2026 15:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The next episode of science comedy talk show is about "De-Extinction", and some how we've settled on doing a Frankenstein parody with Furbys

πŸ§ͺ

07.01.2026 15:37 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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I have this one by @alexkrokus.bsky.social in my office

04.01.2026 15:21 β€” πŸ‘ 35    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
Science, Tonight! - A peer-reviewed comedy talkshow The peer-reviewed comedy talkshow where science comes to life!

The Season 2 Premiere of my late-night science comedy talkshow, Science Tonight! is next week!

Tickets for IRL and livestream here, 5$ off with "SCITONIS2"

www.caveat.nyc/events/scien...

03.01.2026 21:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Not to be controversial but I think we should use tools and resources to make people's lives less miserable instead of more

27.12.2025 00:17 β€” πŸ‘ 13175    πŸ” 2659    πŸ’¬ 95    πŸ“Œ 56

I just wish someone would be honest and say β€œwe are ending civilian science in favor of science that is focused on serving national security and war”

19.12.2025 15:55 β€” πŸ‘ 1816    πŸ” 354    πŸ’¬ 28    πŸ“Œ 24
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By 2040, ~40% of the images from Hubble Space Telescope, and more than 96% from new and future space telescopes like SPHEREx, ARRAKIHS, and Xuntian will be contaminated by internet satellite constellations.

Read our new NASA article in Nature:
nature.com/articles/s4158…

03.12.2025 18:55 β€” πŸ‘ 351    πŸ” 197    πŸ’¬ 12    πŸ“Œ 36

😌

03.12.2025 14:07 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I did something very similar for my latest YT vid!

bsky.app/profile/mark...

24.11.2025 15:50 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0