Knud Jahnke
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knudjahnke.bsky.social
Knud Jahnke
@knudjahnke.bsky.social
Astronomer, Euclid Consortium functionary; likes black holes, galaxies, and sustainable research.
Reposted by Knud Jahnke
If you’re media covering bike-lanes, watch this news story.

If you’re a downtown business association discussing bike-lanes, watch this news story.

If you’re anyone hearing the LIE that bike-lanes are bad for business, watch this story.

And please SHARE THIS STORY so others can watch it too.
WATCH: Seriously, if you’re following ANY bike-lane debate, you HAVE TO WATCH this news story. You actually can’t make this up. Ford claims without evidence that bike-lanes are bad for small business, and THE ACTUAL BUSINESS ASSOCIATION obliterates him with data.

Safe bike-lanes mean business.
Annex businesses tell Ford to back off Bloor bike lanes
Stores in the Annex say the Bloor bike lanes have been a big boost to business. As Michelle Mackey reports, the neighborhood's BIA wants the province to back off its new bill that could see the lanes ...
toronto.citynews.ca
November 8, 2025 at 4:16 PM
Reposted by Knud Jahnke
This is a good article, worth reading.

Gigantic SUVs are a public health threat. Why don’t we treat them like one?

The anti-smoking playbook is worth studying and learning from, and is completely applicable to oversized cars.

Via @davidzipper.bsky.social in @vox.com #CarBloat
Gigantic SUVs are a public health threat. Why don’t we treat them like one?
The anti-tobacco playbook could help turn the US public against their beloved oversized cars.
www.vox.com
November 7, 2025 at 11:48 PM
Reposted by Knud Jahnke
"World's first potential trillionaire has killed 600,000 people, including 400,000 children" is the only headline that anyone should ever read about Elon Musk
November 7, 2025 at 1:33 AM
Reposted by Knud Jahnke
One analytical model shows that, as of November 5th, the dismantling of U.S.A.I.D. has already caused the deaths of 600,000 people, two-thirds of them children. https://newyorkermag.visitlink.me/jUzNSc
The Shutdown of U.S.A.I.D. Has Already Killed Hundreds of Thousands
The short documentary “Rovina’s Choice” tells the story of what goes when aid goes.
newyorkermag.visitlink.me
November 6, 2025 at 9:00 PM
Reposted by Knud Jahnke
Euclid and the Dark Cloud

I haven't posted anything recently about the European Space Agency's Euclid mission, but I can remedy that by passing on a new image with text from the accompanying press release. This is actually just one of a batch of new science results emerging from the first `Quick…
Euclid and the Dark Cloud
I haven't posted anything recently about the European Space Agency's Euclid mission, but I can remedy that by passing on a new image with text from the accompanying press release. This is actually just one of a batch of new science results emerging from the first `Quick Release' (Q1) data; I blogged about the first set of Q1 results here…
telescoper.blog
November 6, 2025 at 3:45 PM
Commute to work today:

#Heidelberg #cycling
November 6, 2025 at 7:37 PM
Reposted by Knud Jahnke
Here's a cutout, this is about 1% of the full image. Young stars, dust and gas being blown out, a lot is going on. The #ESA page has in-depth explanations.

#stars #starformation #astronomy

6/
November 5, 2025 at 10:42 AM
Reposted by Knud Jahnke
The second image released today is by the EC and @esa.int, of the 'Dark Cloud' LDN 1641 – a near-infrared colour view through thick dust by #Euclid's NISP instrument:

www.esa.int/ESA_Multimed...

#space #astronomy

4/
Euclid peers through a dark cloud’s dusty veil
www.esa.int
November 5, 2025 at 9:21 AM
Reposted by Knud Jahnke
We are releasing seven new science publications today, based on our Q1 data release earlier this year. All revolve around galaxies, from dust to interactions to active centers.These are accompanied by two new image collages drawn from the same release.

1/

🔭 #astronomy #space #ESA
November 5, 2025 at 9:15 AM
TIL that Zohran #Mamdami convinced his mother not to take the offer to direct 'Harry Potter and the Order of the Phoenix'. Oh and she has won a Golden Lion at the Venice film festival, and has BAFTA, Golden Globe, and Oscar nominations for her work.

en.wikipedia.org/wiki/Mira_Nair
Mira Nair - Wikipedia
en.wikipedia.org
November 5, 2025 at 1:37 PM
@astroroyalscot.bsky.social

Sarah Hörst blocked me just now. Can you fathom what in my reply enraged her so much to do this?
October 17, 2025 at 3:42 PM
Reposted by Knud Jahnke
A US tech startup is proposing to use mirrors in space to power solar farms on Earth at night. Is this even feasible? And what are the light pollution dangers?

Myself and @mattkenworthy.bsky.social have crunched the numbers for The Conversation.

theconversation.com/a-us-startup...
A US startup plans to deliver ‘sunlight on demand’ after dark. Can it work – and would we want it to?
Satellites beaming sunlight down to Earth sound like science fiction – and they have astronomers very worried.
theconversation.com
October 9, 2025 at 8:59 PM
Reposted by Knud Jahnke
I'd give the prize to Greta Thunberg just to see the look on Trump's face
October 8, 2025 at 9:32 AM
Reposted by Knud Jahnke
Das Problem dabei ist aber, dass Anlagen, die sich allein durch Eigenverbrauch rechnen sollen, deutlich kleiner ausfallen und die Dächer dadurch nur zum Teil belegt werden.
October 7, 2025 at 11:12 AM
Reposted by Knud Jahnke
No Avi, that Perseverance Navcam picture you posted isn't showing 3I/Atlas, it's just Phobos, the brighter one of Mars' moons.

If you were even half the expert you think you are, this possibility should have been quite obvious and worth mentioning.
October 6, 2025 at 8:05 PM
Reposted by Knud Jahnke
This is complete and utter pompous bullshit. It's telling that of the people proposing it wants to anoint themselves director general when every one of his claims of having discovered technosignature interstellar objects has been debunked by the planetary community. arxiv.org/pdf/2510.01405
arxiv.org
October 6, 2025 at 3:26 PM
Reposted by Knud Jahnke
This tweet has been doing the rounds on Twitter now that Nathan Gill has pleaded guilty.

If only someone had tried to investigate UKIP & Russian interference 🧐

There’s another timeline where the Guardian supported me, doubled down on the investigation & I look 5 years younger ..
September 28, 2025 at 4:46 PM
Reposted by Knud Jahnke
"She was an extraordinary personality, who did not let convention intimidate her": Nadine Neumayer, head of the Lise Meitner Research Group 'Galactic Nuclei' @mpi-astro.bsky.social, on the inspiring #DarkMatter pioneer #VeraRubin, who transformed our understanding of the universe.🌟🌌
Nadine Neumayer on Vera Rubin, trailblazer of dark matter
Nadine Neumayer, head of the Lise Meitner Research Group ‘Galactic Nuclei’ at the MPI for Astronomy in Heidelberg on the trailblazing U.S. astronomer Vera Rubin, pioneer of dark matter
www.mpg.de
September 23, 2025 at 1:15 PM
Reposted by Knud Jahnke
Nun holt der NDR die ehemalige BILD-Chefredakteurin Tanit Koch als Nachfolgerin von Ruhs, um die Lage zu beruhigen. Dass man sich nicht anders zu helfen weiß, als sich Ex-Führungspersonal vom Organ der Niedertracht zu holen, ist ein Offenbarungseid für den ÖRR.
www.zeit.de/kultur/film/...
NDR-Sendung "Klar": Frühere "Bild"-Chefredakteurin Tanit Koch folgt auf Julia Ruhs
Der NDR-Redaktionsausschuss sieht nach der Absetzung von Julia Ruhs "großen Informationsbedarf". Indes nominiert der Sender Ex-"Bild"-Chefin Tanit Koch als Nachfolgerin.
www.zeit.de
September 19, 2025 at 3:03 PM
Reposted by Knud Jahnke
Das ist krass: Julia Klöckner lässt jetzt einfach abstreiten, dass sie die taz und Nius verglichen hat - mit Verweis auf das schriftliche Redemanuskript. Dabei war @larswienand.bsky.social vor Ort und hat einen Mitschnitt der tatsächlichen Rede.
kress.de/news/beitrag...
Zitat oder nicht? Klöckners seltsames Spiel mit Nius und taz
Im Ernst? Die Bundestagspräsidentin Julia Klöckner hat Nius und taz gar nicht verglichen, sagt sie jetzt. Das ruft Markus Wiegand in seiner kress pro-Kolumne auf den Plan.
kress.de
September 16, 2025 at 2:59 PM
Reposted by Knud Jahnke
Manche Leute reagieren mit Abscheu auf die autoritären Moves, die Trump in den USA derzeit vorführt. Andere offenbar mit „Hm, stimmt, sowas in die Richtung könnten wir tatsächlich jetzt auch mal machen.“
CDU-Generalsekretär Carsten Linnemann mit einem verfassungswidrigen Vorstoß: „Ich finde, man muss jetzt beispielsweise klar sagen: Wir frieren die Gebühren auf dem jetzigen Niveau bis auf Weiteres ein, damit endlich Druck entsteht, damit Reformen passieren.“ www.welt.de/politik/deut...
Julia Ruhs: Linnemann kritisiert NDR scharf – und fordert Einfrieren des Rundfunkbeitrags - WELT
CDU-Generalsekretär Carsten Linnemann kritisiert den NDR scharf, weil Moderatorin Julia Ruhs für den Sender nicht mehr im Format „Klar“ eingesetzt wird. Er spricht von einem „Tiefpunkt der Debattenkul...
www.welt.de
September 18, 2025 at 4:29 PM
Reposted by Knud Jahnke
"Niemand fällt bei uns in die Armut, nur weil er arbeitslos ist." Das hat er wirklich ernsthaft gesagt. Ich wünsche Multimillionär und Bundeskanzler Merz mal drei Monate lang ein Leben von Bürgergeld.
September 17, 2025 at 6:05 PM
Reposted by Knud Jahnke
Make no mistake, everything that’s happening in the United States is being significantly enabled by the right wing oligarch capture of media.

Every other country needs to do everything possible to keep that from happening where they are.

Including protecting the CBC from Poilievre here in Canada.
August 31, 2025 at 8:19 PM
Reposted by Knud Jahnke
Faschismus.

Die öffentliche Sphäre wird gesäubert.

Social Media kommt als Nächstes.
ABC announced that it was pulling Jimmy Kimmel’s late night show “indefinitely” after his comments about Charlie Kirk’s death. nyti.ms/46vgZl3
September 18, 2025 at 6:50 AM