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Thomas Zimmerman

@tzimmerman

Space Policy & National Security. Raised in Austin. Live in DC. ๐Ÿณ๏ธโ€๐ŸŒˆ

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23.08.2023
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Latest posts by Thomas Zimmerman @tzimmerman

I have been dreaming of someone making this happen for yearsโ€ฆbut unfortunately I think I chose the wrong career path to be your guyโ€ฆ

07.03.2026 01:13 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I see wot you did there.

28.02.2026 23:49 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Alert Stream | Rubin Observatory Explore how Rubin Observatory will identify changes in the night skyโ€”and let the world know about them within minutes.

This week has been a long year

First, ICYMI, @vrubinobs.bsky.social hit a HUGE milestone with our live alert stream going public. I've worked on various aspects of this since joining UW and @dirac-institute.bsky.social in late 2016. Learn more about how this works, including how to access the data:

27.02.2026 20:36 ๐Ÿ‘ 20 ๐Ÿ” 5 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Some good news!

27.02.2026 14:26 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Just leaving this here in the context of DODโ€™s ongoing efforts to compel Anthropic to lift its restrictions on deploying Claude to power fully autonomous weaponsโ€ฆ

26.02.2026 20:34 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Hilary Knight wants focus on the US women's Olympic success, not Trump's 'distasteful joke' Hilary Knight says the U.S. womenโ€™s hockey team is moving past what she called a โ€œdistasteful jokeโ€ by President Donald Trump.

Hilary Knight doesnโ€™t want to let what she called a โ€œdistasteful jokeโ€ by President Donald Trump about the gold-medal winning U.S. womenโ€™s Olympic hockey team get in the way of a historic performance by American women across all sports at the Milan Cortina Games.

25.02.2026 23:35 ๐Ÿ‘ 352 ๐Ÿ” 69 ๐Ÿ’ฌ 16 ๐Ÿ“Œ 7
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Union: WNBA made enough money for revenue sharing The WNBA players union says that the league generated enough revenue to trigger revenue sharing.

For the first time in league history, the WNBA generated enough revenue in 2025 to trigger revenue sharing with players. Players will receive $8 million.

The union will also pay out $9.25 million from revenue generated from its group licensing program.

www.espn.com/wnba/story/_...

23.02.2026 17:08 ๐Ÿ‘ 7207 ๐Ÿ” 1229 ๐Ÿ’ฌ 163 ๐Ÿ“Œ 90

North Korean leader Kim Jong Un has positioned his teenage daughter, Kim Ju-ae, in a leadership role within the countryโ€™s missile bureau, a unit connected to its missile and nuclear forces, according to multiple reports.

Analysts see this as part of her emerging prominence in state affairs.

24.02.2026 13:51 ๐Ÿ‘ 47 ๐Ÿ” 16 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 3
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From Cold War interceptors to Ukraine: how Russia came to park spy satellites next to the Westโ€™s most sensitive tech in orbit โ€” Meduza Two Russian satellites have spent years quietly maneuvering along Earthโ€™s geostationary belt โ€” the ring ofย orbits 36,000 kilometers (roughly 22,370 miles) above the equator, where satellites appear st...

โ€œThe likeliest explanation for what the Luch satellites are hunting is signals intelligence of immediate military value. Many commercial satellites transmit a portion of their traffic without encryption, and a 2025 studyโ€ฆ[found] that intercepted traffic included the call signs of U.S. Navy vesselsโ€

23.02.2026 17:13 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Highlights from PBS News Weekend as show goes off the air This Sunday is the final broadcast of PBS News Weekend, at least for the foreseeable future. PBS cancelled the show due to the loss of federal funding for public media. As our team signs off the air, anchor John Yang looks back at some of our top storie...

Tonight marked the last broadcast of PBS News Weekend for the foreseeable future. As the show signs off the air, anchor John Yang looks back at some of our top stories and highlights over the years. https://to.pbs.org/4pxYe7W

12.01.2026 03:02 ๐Ÿ‘ 1172 ๐Ÿ” 418 ๐Ÿ’ฌ 70 ๐Ÿ“Œ 45

Itโ€™s old-fashioned to defend mainstream journalism these days but some of the most reliable reporting from people actually on the ground will be the AP and Reuters the next 24 hours. Your Substack journalist writing takes will be using frontline reporting from them.

03.01.2026 08:09 ๐Ÿ‘ 1702 ๐Ÿ” 367 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 210
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In Myanmarโ€™s Election, โ€˜Voting Out of Fear, Not Hopeโ€™

โ€œWe can confidently guarantee that the election is free and fair because it is being carried out by the military,โ€ said [Senior Gen. Min Aung Hlaing, who led the 2021 coup]. โ€œOur military will not allow its reputation to be tarnished.โ€

Sigh. Myanmar deserves so much better.

29.12.2025 13:16 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

A big moment for NASA and a huge congratulations to Administrator Isaacman. His passion for the mission and his experience bring a valuable perspective to the agency. Looking forward to a steady leadership in this incredible chapter in the history of space exploration.

18.12.2025 12:52 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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European nations agree 30% boost in three-year space budget European nations agreed on Thursday to increase spending on space over the next three years by about 30% to 22.1 billion euros, part of an effort to try to catch up to the U.S., China and private firms zooming ahead in the space race.

European nations agree 30% boost in three-year space budget reut.rs/48hs2z5

27.11.2025 21:01 ๐Ÿ‘ 20 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Green Card Interviews End in Handcuffs for Spouses of U.S. Citizens

"We followed everything we were supposed to do"

Legitimate green card applicants with US spouses are being
arrested by armed, masked men at scheduled immigration interviews, taken away from their children, sent to prison

www.nytimes.com/2025/11/26/u...

27.11.2025 11:55 ๐Ÿ‘ 5517 ๐Ÿ” 2717 ๐Ÿ’ฌ 269 ๐Ÿ“Œ 208

Honestlyโ€ฆ.sign me up for Thai Space Chicken.

17.10.2025 23:57 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

โค๏ธ

17.10.2025 23:56 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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What the closure of USAID is really costing the world The abrupt withdrawal of American funding has stranded millions of patients and will be felt by countries for years to come

โ€œWithout US leadership there is no way we would have bent the HIV curve,โ€ [John] Nkengasong says of the roughly $120bn marshalled by Pepfar since 2003. โ€œAmericans should be proud of that achievement in addressing one of the great health challenges the world has faced.โ€

on.ft.com/4ojiRFJ

07.08.2025 11:36 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Trying to find this story. Whatโ€™s it in? Thanks!

21.07.2025 22:00 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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DeepSeekโ€™s Democratic Deficit Governments and companies are underestimating the power of the high-performing AI model as a propaganda tool.

Fascinating Read:

โ€œGovernments and experts have argued DeepSeek has few problems beyond small amounts of โ€˜half-baked censorship,โ€™ and data security issues. They must take it more seriously as a threat to freedom of expression.โ€

24.06.2025 11:55 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Chinaโ€™s Chokehold on This Obscure Mineral Threatens the Westโ€™s Militaries

โ€œWithout these magnets, the United States and its allies in Europe will struggle to refill recently depleted inventories of military hardwareโ€ฆChina produces the entire worldโ€™s supply of samarium, a particularly obscure rare earth metal used almost entirely in military applications.โ€œ

10.06.2025 11:57 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The MAHA Report Cites Studies That Donโ€™t Exist The Trump administrationโ€™s โ€œMake America Healthy Againโ€ report misinterprets some studies and cites others that donโ€™t exist, according to the listed authors.

โ€œโ€ฆciting more than 500 studies and other sources to back up its claims. Those citations, though, are rife with errors, from broken links to misstated conclusions. Seven of the cited sources donโ€™t appear to exist at all.โ€

29.05.2025 12:01 ๐Ÿ‘ 1 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Tesla sales cut in half in Europe April's sales of vehicles from Elon Musk's company were down by 49 percent compared to the same time last year.

A reminder that we continue making policy choices that will surrender the market to Chinese auto manufacturers.

โ€œTesla's dwindling sales in Europe show a shift away from the brand toward Chinese competition.โ€

28.05.2025 12:35 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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A Starter Guide to Protecting Your Data From Hackers and Corporations Hackers. AI data scrapes. Government surveillance. Yeah, thinking about where to start when it comes to protecting your online privacy can be overwhelming. Hereโ€™s a simple guide for youโ€”and anyone...

Hackers. AI data scrapes. Government surveillance. Yeah, thinking about where to start when it comes to protecting your online privacy can be overwhelming. Hereโ€™s a simple guide for youโ€”and anyone who claims they have nothing to hide. www.wired.com/story/guide-...

26.05.2025 10:39 ๐Ÿ‘ 452 ๐Ÿ” 170 ๐Ÿ’ฌ 20 ๐Ÿ“Œ 12
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Trump Administration Halts Harvardโ€™s Ability to Enroll International Students

This is an insane, wildly counterproductive policy change that will do nothing but harm the national interest. www.nytimes.com/2025/05/22/u...

22.05.2025 18:17 ๐Ÿ‘ 134 ๐Ÿ” 37 ๐Ÿ’ฌ 10 ๐Ÿ“Œ 12

Also, functionally banning medical care for as many trans people as possible. Just reprehensible.

22.05.2025 20:53 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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China to donate $500 million to WHO, stepping into gap left by U.S. Beijing will replace the United States as the organizationโ€™s top state donor, expanding its influence as the U.S. retreats from international cooperation.

This is a big play at a time of American retreat and self-destruction. www.washingtonpost.com/world/2025/0...

21.05.2025 09:24 ๐Ÿ‘ 506 ๐Ÿ” 155 ๐Ÿ’ฌ 17 ๐Ÿ“Œ 17

Pushback works

21.05.2025 01:33 ๐Ÿ‘ 2938 ๐Ÿ” 616 ๐Ÿ’ฌ 82 ๐Ÿ“Œ 18
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Germany drops opposition to nuclear power in rapprochement with France Paris wins approval from Berlin to remove anti-nuclear bias in EU legislation, say officials

Some good news!

โ€œBerlin has signalled to Paris it will no longer block French efforts to ensure nuclear power is treated on par with renewable energy in EU legislation, according to French and German officials.โ€

20.05.2025 12:19 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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Texas Measles Outbreak Slows After Big Push for Vaccinations The rate of new measles infections in Texas has slowed as immunity to the virus builds and vaccinations rise.

Itโ€™s almost like vaccines are effectiveโ€ฆ

โ€œThe increase in vaccinations, especially among infants, has contributed to the slowdown, with over 320,000 residents receiving at least one dose of the MMR vaccine since the beginning of the year through April, a 15% increase from the same period last yearโ€

20.05.2025 11:43 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0