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Sascha Trippe 🛰️ 사샤 트리페

@saschatrippe.bsky.social
1.8K followers 814 following 1.5K posts

⭐️ Astronomer – MSc, PhD, Professor (교수) ⭐️ Seoul National University / 서울대학교 ⭐️ Black holes, AGN, radio astronomy, VLBI ⭐️ Born at 332 ppm CO₂ ⭐️ Time zone: UT+9 ⭐️ Trigger warning: math, physics, irony ⭐️ Signature: (+,-,-,-)

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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Minseon Ku @minseonku.bsky.social · 32m
This is the strongest expression South Korea has made diplomatically in the recent years. Seoul signalling that inter-Korea relations is a line that other countries shouldn’t cross and it’s something Seoul won’t take lightly.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 4h
Looks like I was on the right trail (sort of). #TrumpDiesel
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Pessimists Archive @pessimistsarc.bsky.social · 6h
First time machines mogged mathematicians? 1976. When the ‘four color theorem’ was solved via computer mathematicians like Paul Halmos said: “the present proof relies in effect on an Oracle, and I say down with Oracles! They are not mathematics.”
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 09/10/2026
"The great spam filter".
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 09/10/2026
That might explain a lot. #SETI 🔭
Cartoon "Messages from ETI" by Tom Gauld.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 08/10/2026
👀 @science.esa.int (by @xkcd.com)
JUICE, by xkcd
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
PHD Comics @phdcomics.com · 07/10/2026
Want to know what Optogenetics is and why it won the Nobel Prize this week? Read this comic I made!
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 06/10/2026
NEW PAPER: Wanchaloem Khwammai, my ex-student and now postdoc at NARIT, found a 300-deg polarization angle swing in multi-observatory radio data of the blazar OJ 287, likely caused by the propagation of a transient disturbance in the jet. arxiv.org/abs/2610.03044 🧪🔭☄️ #RadioAstro #Extragalactic
Observed radio flux density, EVPA, and polarization fraction of OJ 287 as a function of time and frequency, covering the period from 2012 April to 2023 January.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 06/10/2026
20. Jahrhundert: "in Stahlgewittern" 21. Jahrhundert: "In Fäkalgewittern"
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Marcel Dirsus @marceldirsus.com · 06/10/2026
The former boss of Germany's most important intelligence agency, the BND, has been arrested on suspicion of treason.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 06/10/2026
“I don’t believe you have to be a Jew to be a Zionist, and I am a Zionist.” — Joe Biden My thoughts exactly. 🇮🇱 [Source 👇]
theatlantic.com
What Is Zionism?
To understand what the word means today, you have to go back to the beginning of the story.
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Nobel Prize @nobelprize.org · 06/10/2026
BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2026 #NobelPrize in Physics to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.”
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 06/10/2026
Any possible connection with this? 👇 "You stop bombing downtown Kyiv for a few days, then I ask the Ukrainians to stop bombing Russian refineries" somewhat sounds like the kind of short-sighted deals Trump would attempt.
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Antigone @antigoneinthebes.bsky.social · 03/10/2026
People don’t realize how serious the situation is.
A graph showing number of Germanies over time. Losing one on October 3rd 1990 means by projection we are only decades before reaching -1 Germany in 2072
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 05/10/2026
Yes, that would be *very* expensive, but might still be cheaper than the global war on drugs. Not to speak of the human suffering that might be prevented.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 05/10/2026
Serious question: has anyone ever tried to systematically buy out cocaine farmers / squeeze out cocaine economically? Like in, offer all of them to buy up their harvest at the highest price, and/or offer ridiculously high prices if they farm other products?
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Marcel Dirsus @marceldirsus.com · 05/10/2026
One of the biggest consequences of Russia's war will be a changed Germany. It took a long time, but Germany is changing its approach to military force, to intelligence, to the arms industry. The result will be a huge expansion of European military power, firmly directed at Moscow.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 05/10/2026
The institute in question. 🧪🦠
irknipchi.ru
Irkutsk Antiplague Research Institute of Siberia and Far East awarded by the Labour Red Banner
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 05/10/2026
An actual lab leak. 🧪🦠
themoscowtimes.com
Nearly 200 People Under Observation After Irkutsk Lab Worker Dies From Plague - The Moscow Times
Health authorities in Siberia’s Irkutsk region have placed nearly 200 people under medical observation after a laboratory worker died from plague, according to media reports and a statement by a regio...
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 04/10/2026
Not sure who needs to hear this, but the term "SI" has been defined for decades. 🧪
en.wikipedia.org
International System of Units - Wikipedia
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 04/10/2026
I have used the SI since high school.
en.wikipedia.org
International System of Units - Wikipedia
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 04/10/2026
New pet peeve: hotels that make it almost impossible to switch off the lights at night. 🤨
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 04/10/2026
Oder in der falschen Zeitzone 😏
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 04/10/2026
Regular reminder to Europeans & North Americans: You know shockingly little about Asia. Asians, however, follow world news closely and know a lot about you. And they are increasingly unimpressed. 🌏
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
Südkorea, 06:08 Uhr Ortszeit. Das Telefon piept. Vorgefunden: eine angeblich dringende E-Mail eines Kollegen und die neue Folge "Lassiter" von @fandorin.eurosky.social. An Schlaf war nicht mehr zu denken.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
Finally, we are making progress with the actually important questions. 🧪
pdx.edu
Why do pickles glow? PSU researcher investigates explosive answer
If you mount a pickle on two metal forks and plug it into a socket, one end will light up in a brilliant orange glow. It’s a classic K-12 science demonstration, but the exact physics behind the illumi...
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
And yes, a document with >100 pages is a book 😏
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
New book on the Magellanic Clouds dropped. 🧪🔭☄️ #extragalactic arxiv.org/abs/2609.38277
arxiv.org
The orbital dynamics of the LMC and SMC about the Milky Way
This review summarizes the changing observational and theoretical landscape that has led to rapid developments in our understanding of the orbital history of the Milky Way's most massive satellite gal...
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
Big if true. #Neutrinos 🧪⚛️
physics.aps.org
Gallium Anomaly May Finally Be Explained
A decades-old neutrino mystery might be solved not by undiscovered physics but by improved calculations.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 01/10/2026
Solve it the American way: sue for defamation in a US court, demand $99 million, settle for $10 million. Be rich and happy ever after. 😏
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 30/09/2026
Good morning. 🌗
The moon from Western South Korea.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 30/09/2026
VPN plus ad/tracker blocker serverseitig. Seitdem "Spiegel" u.v.a. werbefrei. Ein Traum.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 30/09/2026
I am old enough to remember Modern Monetary Theory. Well.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 30/09/2026
Also, this comes to mind.
en.wikipedia.org
Columbia University rape accusation controversy - Wikipedia
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 29/09/2026
Context.
cornellsun.com
Cornell, Chi Phi Sued by Victim of Alleged Gang Rape, Drugging in 2024
A former Cornell student filed a lawsuit on Monday, alleging that she was gang raped after being coerced into consuming drugs by several men at the Chi Phi fraternity house at Cornell in 2024. 
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 29/09/2026
Not sure I get the point. This is about a case that just went to court. Obviously, nobody is punished for anything until proven guilty in a court of law? That's how law works?
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 29/09/2026
War wohl absehbar (vom 9.4.25) ¯\_(ツ)_/¯
"Spiegel"-Leserkommentar vom 9.4.2025:

Viel interessanter, aber fast nirgendwo erwähnt, ist die Entwicklung der US-Staatsanleihen. Der US-Staatshaushalt ist seit vielen Jahren tief in den roten Zahlen, und (offenkundig berechtigte) Zweifel am Sachverstand der Regierung schrecken Anleger ab. In den letzten 48 Stunden ist der Zinssatz für zehnjährige Anleihen von 3,9% auf 4,4% gesprungen. Bei einer Gesamtverschuldung von 35 Billionen Dollar stehen den USA drastisch erhöhte Zinszahlungen ins Haus.
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
Randall Munroe @xkcd.com · 29/09/2026
Jupiter Icy Moons Explorer xkcd.com/3304/
4-panel comic. (1) April 2023: [JUICE space probe flying away from Earth] FROM EARTH: *JUICE* is en route to explore the icy moons of Jupiter! JUICE: *Wheee!* (2) August 2024: [JUICE flying past Earth] JUICE: ...So which planet was I visiting again? I got distracted. FROM EARTH: Jupiter! JUICE: Right, OK. (3) September 2026: [JUICE flies past Earth again] JUICE: Is Jupiter the one with all the rings? Or... FROM EARTH: No, the big one near it. JUICE: Got it! (4) January 2029: [JUICE returning to fly past Earth again] JUICE: And *which* moons am I looking at? FROM EARTH: Oh my *god*. FROM EARTH: Now I get why we budgeted for so many Earth flybys.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 29/09/2026
As a professor, most of what I do is emailing people.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 29/09/2026
Also, what about magnetic fields?
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Reposted by Sascha Trippe 🛰️ 사샤 트리페
ESA Space Science @science.esa.int · 28/09/2026
A successful Earth flyby improves Juice’s course to Jupiter Earlier today, Juice flew just 8640 km above the Indian Ocean and snapped these images with its onboard monitoring cameras. 1️⃣Africa, by Juice monitoring camera 2️⃣Madagascar, by Juice NavCam 3️⃣Moon, by Juice NavCam 🔭 🧪 #planetsci
Mostly black space, most of Earth visible at the top right of the image. Part of a spacecraft visible on the left.Part of the island of Madagascar in black and white.A crescent Moon, with about a quarter of the Moon showing. Many craters are visible.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
"Wasser woanders. Ein Klimawandelroman."
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
Several things can be true at the same time 😄 Mass-production of rockets is a great thing for accessibility to space. Having a reusable super-heavy booster would be great for space stations / telescopes, but Starship is a project done terribly (as I keep saying).
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
I am an astronomer and I approve this message 🫡
Planetary nebula.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
Maybe most disturbing was the appearance of a kind of anti-scientific groupthink *among scientists*: AI is bad, SpaceX is bad, sex/gender is not real etc. (not to mention all the antisemitism / antizionism on top). How could I possibly subscribe to that? 🤔
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
No worries, I wasn't thinking about you 😄 I do understand the pressure US- based scientists feel. But I had to unfollow a few colleagues once they started rage posting >10 times per hour – I need my feed for other things ¯\_(ツ)_/¯
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
Posted at *checks world clock* 01:30 (a.m.) Netherlands time 👀
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
For me, the most disappointing thing was how after Nov 2024 my feed turned into US-politics-only news. I came to Bsky for the science discourse, not for unhinged "orange man bad" shouting. ¯\_(ツ)_/¯
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 28/09/2026
Anything specific you have in mind? 🤔
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 27/09/2026
You are talking about Reddit, right?
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