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Marshall Eubanks

@marshall-eubanks

A physicist with a lead role in creating two Very Long Baseline Interferometry (VLBI) systems, for JPL & the USNO. Now Chief Scientist at Space Initiatives Inc, developing picospacecraft for use in deep space. Asteroid (6696) Eubanks is named in his honor.

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04.10.2025
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Latest posts by Marshall Eubanks @marshall-eubanks

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Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS Interstellar objects provide the only directly observable samples of icy planetesimals formed around other stars, and can therefore provide insight into the diversity of physical and chemical conditio...

Two new papers on 3I/ATLAS

Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS
arxiv.org/abs/2603.06911

A Direct View of the Chemical Properties of Water from Another Planetary System: Water D/H in 3I/ATLAS
arxiv.org/abs/2603.07026

10.03.2026 21:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This war is more a manifestation of a personality disorder than any coherent strategy. You knew that, but @edwardluce.bsky.social frames it well and persuasively in his latest excellent column.

10.03.2026 20:00 πŸ‘ 119 πŸ” 45 πŸ’¬ 3 πŸ“Œ 2
Observations (from many sources) of the Green and Red magnitudes of the coma of the Interstellar Object 3I/ATLAS

Observations (from many sources) of the Green and Red magnitudes of the coma of the Interstellar Object 3I/ATLAS

Our interstellar visitor, 3I/ATLAS, is just about to have its last spacecraft encounter, next week with the Juno spacecraft. and I thought people might like to see how it is fading out, with its brightness more or less following the models we fit in late December.

10.03.2026 20:21 πŸ‘ 15 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

I don't think any other President had to wear diapers.

10.03.2026 20:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Dates of New Moons will likely become important. The next New Moon is March 18 9:23 pm EDT.

Of course, the IRGC undoubtedly owns night scopes as well.

10.03.2026 15:21 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

like, the IRGC owns binoculars. they can see a ship the size of the empire state building crossing the strait. turning the transponder off isn't an invisibility cloak

10.03.2026 15:10 πŸ‘ 153 πŸ” 10 πŸ’¬ 10 πŸ“Œ 0
Price of oil over the last week, spiking then mostly coming back down

Price of oil over the last week, spiking then mostly coming back down

Oil price spiked then mostly went back down.

One of the weirder market moves I've seen. Big supply crunch makes price rise, then with the supply crunch continuing unabated falls back to close to where it was.

steady demand + supply crunch = price rise

Or at least that's how it's supposed to work.

10.03.2026 15:15 πŸ‘ 110 πŸ” 20 πŸ’¬ 24 πŸ“Œ 5
Ariane 6 rocket launch seen from cockpit of French fighter jet  | VOA News
Ariane 6 rocket launch seen from cockpit of French fighter jet | VOA News YouTube video by Voice of America

Here is a stunning video of the Ariane 6 launch on March 6, 2025 at Kourou, French Guiana, by the pilot of one of the three Dassault Rafale fighter jets patrolling the launch area and showing off their flying and photography skills.
www.youtube.com/watch?v=p5H3...

07.03.2025 13:58 πŸ‘ 11 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

Nothing official as yet, but it appears that the Bahrain government has fallen, with the King fleeing the country.

Bahrain is a majority Shia country with an unpopular Sunni King kept in power by Saudi Arabian tanks since March 14, 2011. The IRI has removed that check.

08.03.2026 18:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I am going to be extremely upset if the major outcome of this dumb war against Iran is to collapse the one fragile mostly-kinda-democracy (with big, significant problems, to be clear) we managed to create in the Middle East.

08.03.2026 18:03 πŸ‘ 188 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1

That is a concentrated blast of foolishness (no surprise, given the source), but at the core of it is the failure to realize that just because your opponent is losing in war does not mean that you are winning and it certainly doesn't mean that you will win.

08.03.2026 18:07 πŸ‘ 202 πŸ” 14 πŸ’¬ 9 πŸ“Œ 1

Nothing official as yet, but it appears that the Bahrain government has fallen, with the King fleeing the country.

Bahrain is a majority Shia country with an unpopular Sunni King kept in power by Saudi Arabian tanks since March 14, 2011. The IRI has removed that check.

08.03.2026 18:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ukraine Military
πŸ›‘οΈ Ukraine intel damages Russia S-500
πŸ’₯ Russian strike kills 11 in Kharkiv
βš”οΈ Ukraine halts Zaporizhzhia offensive

08.03.2026 18:09 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Wooowwwww. Cowardly and censorious.

07.03.2026 19:20 πŸ‘ 49 πŸ” 20 πŸ’¬ 1 πŸ“Œ 0

To help excuse the wimpiness, they claim that playing a video is more engaging than a live speaker.

Such a good point, but they're undershooting it. People are going to LOVE Zoom-only graduations, can't wait

07.03.2026 19:21 πŸ‘ 43 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0
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DOJ Official Pushes for Cases Against Cuban Leaders, as Trump Eyes Regime Change The administration used criminal charges against Venezuela’s Maduro as justification for his ouster.

And here we go. www.wsj.com/politics/nat...

07.03.2026 19:51 πŸ‘ 4 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

I would refuse to record anything. Let them air dead air.

07.03.2026 19:54 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Question: why would anyone come to the World Cup here?

@fifa that β€œpeace prize” isn’t aging too great huh πŸ†

07.03.2026 16:23 πŸ‘ 3060 πŸ” 965 πŸ’¬ 107 πŸ“Œ 38
58 YRS AGO, Lucille Ball made a daring choice. She took a bold risk on a show no other studio would touch. Her leap of faith gave the world Star Trek. It launched a franchise that would transcend time.

58 YRS AGO, Lucille Ball made a daring choice. She took a bold risk on a show no other studio would touch. Her leap of faith gave the world Star Trek. It launched a franchise that would transcend time.

58 YRS AGO, Lucille Ball made a daring choice. She took a bold risk on a show no other studio would touch. Her leap of faith gave the world Star Trek. It launched a franchise that would transcend time.

02.02.2026 09:59 πŸ‘ 80 πŸ” 24 πŸ’¬ 4 πŸ“Œ 0
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Pope Leo XIV: β€œWar is never holy!”

07.03.2026 18:08 πŸ‘ 2369 πŸ” 853 πŸ’¬ 57 πŸ“Œ 52
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Well, no shit. I’ve been raising the alarm on this for years now

07.03.2026 16:34 πŸ‘ 4776 πŸ” 1136 πŸ’¬ 287 πŸ“Œ 52

Are the Cod coming back.

(The Lobsters boomed when the Cod crashed and stopped eating them.)

07.03.2026 18:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Maine's catch of lobster declines again as high costs and climate change impact industry Maine’s catch of lobsters has declined for the fourth straight year as the industry continued to grapple with soaring business costs, inflation and a changing ocean.

Maine's catch of lobsters declined for the fourth straight year, state fishing regulators said Friday, as the industry continued to grapple with soaring business costs, inflation and a changing ocean.
www.news4jax.com/business/202...

07.03.2026 04:20 πŸ‘ 293 πŸ” 127 πŸ’¬ 32 πŸ“Œ 6

That makes it a One-Of-A-Kind Kintsugi Bonsai Pot!

07.03.2026 18:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Hormuz never closed for Chinese, Russian, Pakistani and (of course) Iranian ships.

It is still closed for everyone else.

I believe a Chinese convey left recently. I don't know if that included any Chinese friends.

07.03.2026 16:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Humanity heating planet faster than ever before, study finds Researchers identify sharp rise to about 0.35C every decade, after excluding natural fluctuations such as El NiΓ±o

It doesn’t matter whether the rate of global warming is increasing. It’ll never cease to amaze me that people don’t care that it’s happening at all. It should be the most alarming thing ever.

07.03.2026 10:34 πŸ‘ 4261 πŸ” 1648 πŸ’¬ 67 πŸ“Œ 122

It does matter.

At this increased rate of warming it means 2.5C above 1850 levels arrives by 2039 - that’s less than 14 years from now. Not 2100.

That’s an incredibly destructive climate to try and grow food in and live in.

Only 14 years away.

07.03.2026 10:43 πŸ‘ 181 πŸ” 40 πŸ’¬ 2 πŸ“Œ 4
Snowy pine trees under a starry night sky filled with the colorful clouds and stars of the Milky Way core. Photo: Bill Dunford. Fuck Musk.

Snowy pine trees under a starry night sky filled with the colorful clouds and stars of the Milky Way core. Photo: Bill Dunford. Fuck Musk.

Want to say FU to Musk and save worldwide skies from two supervillain plans to disfigure them?

SpaceX wants to launch a million sats. Reflect Orbital wants to provide "sunlight on demand" using huge space mirrors.

Step-by-step how-to for FCC comments. Takes 15 min:

darksky.org/news/two-sat...

06.03.2026 21:20 πŸ‘ 41 πŸ” 21 πŸ’¬ 2 πŸ“Œ 0
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ALMA Detects Extremely Abundant Alcohol in Interstellar Comet 3I/ATLAS - National Radio Astronomy Observatory The latest news from the NSF's National Radio Astronomy Observatory.

ALMA Detects Extremely Abundant Alcohol in Interstellar Comet 3I/ATLAS

New research reveals that 3I/ATLAS is packed with an unusually large amount of the organic molecule methanol – more than almost all known comets in our own solar system.

#Astronomy #RadioAstronomy #3iatlas #ALMA

06.03.2026 21:13 πŸ‘ 54 πŸ” 19 πŸ’¬ 4 πŸ“Œ 5
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Proton Mail Helped FBI Unmask Anonymous β€˜Stop Cop City’ Protestor A court record reviewed by 404 Media shows privacy-focused email provider Proton Mail handed over payment data related to a Stop Cop City email account to the Swiss government, which handed it to the ...

New from 404 Media: Proton Mail, the privacy-focused email service, gave authorities data that let the FBI unmask an anonymous 'Stop Cop City' protester. It was payment data linked to the anonymous email account. From that, FBI ID'd them, then tracked their movements www.404media.co/proton-mail-...

05.03.2026 20:39 πŸ‘ 2488 πŸ” 1410 πŸ’¬ 91 πŸ“Œ 339