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Posts by Knud Jahnke

I would say that about every 2nd (more?) NASA employee has access to "secret information", which includes most of aerospace high-tech, detectors, etc. Which hence isn't a good discriminant.

2 hours ago 0 0 0 0
Mosaic of gravitational lense images, found in early data of the Euclid mission.

Mosaic of gravitational lense images, found in early data of the Euclid mission.

Space Warps is back! Do you want to join forces with #Euclid Consortium scientists and discover gravitational lenses that no human has ever seen before?

#astronomy #science #GravitationalLenses #ESA #space #CitizenScience #ESAEuclid #Zooniverse

13 hours ago 28 16 2 0

A recommended read by Hiranya Peiris:

"[we] had a quality problem long before LLMs...publish or perish, citation metrics as proxy for impact, volume as proxy for productivity... have been producing incremental, poorly checked, & sometimes wrong papers for decades"🧪🔭⚛️

www.nature.com/articles/s41...

17 hours ago 79 22 0 1
An astronomical image featuring the backdrop of the dark night sky with a faint grey-blue speckle at the centre. The nebulous cloud has the shape of a four-leaf flower. Four orange laser beams are pointing to it.

An astronomical image featuring the backdrop of the dark night sky with a faint grey-blue speckle at the centre. The nebulous cloud has the shape of a four-leaf flower. Four orange laser beams are pointing to it.

This isn't a scene from #StarWars.

What you're looking at is the Tarantula Nebula. While those beams come from the lasers installed on the telescopes that comprise our VLTI.

But why are we sending lasers into the sky? Find out: https://www.eso.org/public/images/potw2616a/

🔭 🧪
📷 A. Berdeu/ESO

1 day ago 99 34 4 11
Tim Curry in The Rocky Horror Picture Show

Tim Curry in The Rocky Horror Picture Show

Tim Curry in Clue

Tim Curry in Clue

Tim Curry in The Three Musketeers

Tim Curry in The Three Musketeers

Tim Curry in Muppet Treasure Island

Tim Curry in Muppet Treasure Island

Happy 80th birthday to Tim Curry who has always, *always* understood the assignment.

2 days ago 24998 4211 405 323

Of course they should have half-time shows. 30min long with flags and monster trucks and kid rock medleys. People need to get something on return for their 2000$ tickets.

3 days ago 0 0 0 0

Well, there are places in the world, mostly outside the US, that are different. So it's possible. And to provide good public transit a choice that a community can make.

US suburbs are a problem, though. Too sparsely populated.

3 days ago 1 0 1 0

I did. We chose a place that permitted using bikes and public transit.

4 days ago 1 0 1 0
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Well, the current US gov is basically practicing the Two-Santa-Strategy on steroids. Leave behind only a wasteland and debt, then let someone else clean up and then take over again.

Nothing fundamentally new, only taken to extremes.

4 days ago 2 0 0 0

Demand change.

4 days ago 0 0 2 0

They spent a decade forging ICE emission tests and fighting regulations. That's where their "investment" went to. They didn't even start properly when it was clear that EVs would dominate. Then they focused on the "premium segment". This has nothing to do with investment and all with bad management.

4 days ago 2 0 0 0

Absolutely, I was trying to make the point that Toyota is offering a upper-class EV for $27k while VW rejects even building an entry-level EV for under 20k€. Which is why also Germans buy from other manufacturers.

4 days ago 2 0 1 0

Yep. I don't have a car. Never did. But we have 13 bikes in our garage and public transport passes.

4 days ago 2 0 1 0

It would. But it doesn't exist, even though VW was urged many years back to offer a <20k€ EV or else they might see China win. They ignored that.

Just today the GER gov tried to ram through a law allowing EV subsidies, even if you buy a 200k€ Porsche. Ridiculous.

4 days ago 0 0 0 0

In Germany Volkswagen announced that they might have an entry-level EV starting at 25k€ maybe in 2027.

Not the same thing.

4 days ago 6 0 2 0

Yes, very. And it's the 2nd version, where the first was already bad, then got retracted. They doubled down. Gah!

4 days ago 2 0 0 0
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AI-Assisted Spectral Decomposition of Euclid Q1 Gravitational Lenses: Extended-Coverage NISP Extraction with Vision-Language Model Quality Control Spectroscopic redshift determination from R ~ 450 slitless grism data is vulnerable to line-identification degeneracy when only a small number of features are detected. This paper presents a custom ex...

Just FYI, nothing in this arXiv submission is real or true. This is completely misunderstanding the NISP instrument onboard #Euclid and then creating AI slop "results" based on that.

arxiv.org/abs/2604.02726

5 days ago 5 1 1 0
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How is that working for you today?

5 days ago 0 0 0 0

But on a more serious note, we have mid 2026, such a rendevous taking place in 27 and a landing in 28 is complete unrealistic. This is a purely political schedule.

1 week ago 3 0 1 0

Nono, next year is when Starship lands on Mars.

1 week ago 2 0 1 0

Maybe @mpoessel.de?

I prefer the balloon, at least for "all objects move away from all other objects", closing with "and now you only need to think this in 3 dimensions moving into a fourth, but don't worry, no astronomer can do this either".

1 week ago 2 0 1 0
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Warum diese Katjes-Kampagne für Aufregung sorgt - und die Empörung schwachsinnig ist In der neuen Katjes-Veggie-Kampagne ist eine Frau mit Hidschab zu sehen. Genug Grund für einige Twitter-Pöbler sich so richtig auszulassen.

Alle paar Jahre wieder aufgegossen. Das hier war vor 8 Jahren:

www.stern.de/neon/wilde-w...

1 week ago 1 0 0 0
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Lohnfortzahlung bei Krankheit: Bundesregierung prüft Einschnitte Die Bundesregierung hat am Wochenende nach Wegen gesucht, die ausufernden Kosten im Gesundheitswesen in den Griff zu bekommen. Diskutiert werden einschneidende Maßnahmen für die Versicherten.

Wisst ihr noch, wie SPD mit "Respekt für dich" geworben hat? Nun, wir, die 99% sind nicht gemeint gewesen.

1 week ago 323 88 21 5

I'm going to call it.

On top of capturing the far side of the Moon, Earthshine on the far side, the solar corona (maybe some zodiacal light), Saturn, Mars and Mercury... this #artemis2 photo includes Neptune!!

Just out of frame on the left were Venus and Earth.

I mean, mind-blowing!

🧪🔭🚀🌙👩‍🚀

1 week ago 35 16 1 0

Parteivorsitzender bei Sonstige?

1 week ago 1 0 0 0

Yeah, same here. If our battery would finally be working again then the amount of network electricity would be zero.

1 week ago 0 0 0 0

Currently it seems to be "crewed" throughout.

2 weeks ago 0 0 0 0
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More interesting than the communication loss behind the Moon I'll find the solar eclipse they will encounter, which means no photovoltaic power. They'll need to use their batteries.

And the loss of both toilet and Outlook.

#Artemis2

2 weeks ago 3 1 0 0

How wide is the beam at a few AU distance? It probably depends on the focussing optics, right?

2 weeks ago 0 0 1 0

It was not.

2 weeks ago 1 0 0 0