ronin3510.bsky.social

@matthewdgreen.bsky.social It’s nice to be appreciated…even by a heartless machine 🫥

Wow, QUIC Retry Packets use AES-GCM with a fixed key/nonce, empty plaintext, and associated data prefixed with a secret as a sort of MAC. That's... terrifying?

They essentially do MAC(K, v) = AES-GCM(key=const, nonce=const, plaintext=empty, aad=K||v). Does that actually hold?

The world lost the climate gamble. Now it faces a dangerous new reality The world bet on collective but voluntary action to keep global warming at a safe level.

"Warming is going to exceed 1.5°C. We are heading into overshoot within the next few years": a stark message by PIK Director Rockström & James Dyke in @theconversation.com. Yet, science shows a way back: fossil-fuel phase-out, nature protection, carbon removal.
theconversation.com/the-world-lo...

"Too little was done too late”: New commentary with PIK director Johan Rockström warns of rising planetary risks after a missed decade of action. Climate & biosphere pressures keep increasing, but stabilising the Earth system is still within reach.
www.pik-potsdam.de/en/news/late...

YouTube video by International Cryosphere Climate Initiative After COP30 Fire and Floods: AMOC Shutdown

“… because ignoring systemic risk is unacceptable!”
Iceland’s climate minister in Belém on the risk of major #AMOC changes.
“Prevention remains our first duty.”
Listen to him (and my talk 🌊) here:
youtu.be/B-0eQnEEsYA?...
The first 2 mins show how the live stream was ended by a 🔥.

Many people think about cold in Northern Europe if the Atlantic Ocean current system #AMOC fails. But that wouldn’t be the only problem for Europe by far.
This new study shows that severe drought is another one. 🌊

Ring galaxies, the rarest galaxy type of all, are finally understood Spirals, ellipticals, and irregulars are all more common than ring galaxies. At last, we know how these ultra-rare objects are made.

Ring galaxies, the rarest galaxy type of all, are finally understood

Only about 1-in-10,000 galaxies are ring galaxies, with an old, red nucleus and a young, blue ring surrounding it.

The mystery of their formation has finally been solved.
bigthink.com/starts-with-...
#space #astro #galaxies #ring

CDC Vaccine Website Promotes Anti-Science Claims of Autism Ties The agency this week quietly changed its official language to suggest vaccines may cause autism, a claim that scientists say has no basis in evidence

The agency this week quietly changed its official language to suggest vaccines may cause autism, a claim that scientists say has no basis in evidence

Lintott & Pretty's Universe Of Music | Cambridge Junction Book tickets for Lintott & Pretty's Universe Of Music at J3 at Cambridge Junction. What’s the connection between astronomy and jazz? From William Herschel (discoverer of Uranus and professional musici...

Cambridge! We’re bringing a Universe of Music to you next Thursday.

This show features shells, black holes, music, planets and more - do come if you can!

www.junction.co.uk/events/linto...

This is great news, particularly for CISO Tim Brown, who unfairly paid a big price when the SEC wrongly brought charges against him.

SEC Dismisses Civil Enforcement Action Against SolarWinds and Chief Information Security Officer

www.sec.gov/enforcement-...

Open letter: Harnessing open source AI to advance digital sovereignty Europe is at a crossroads. The Summit on European Digital Sovereignty marks an important milestone for the EU and its member states in aligning on a shared strategy for achieving real and lasting European digital sovereignty. As the EU pursues the goal of digital sovereignty, we urge you to harness open source — that is, technology that is free to use, inspect, adapt, and share — as a key enabler of this strategy.

As the EU pursues the goal of digital sovereignty, we urge you to harness open source — that is, technology that is free to use, inspect, adapt, and share — as a key enabler of this strategy.  https://opensource.org/blog/open-letter-harnessing-open-source-ai-to-advance-digital-sovereignty

Screw it, I’m installing Linux It’s the year of Linux on my desktop.

Frustrated Windows users are switching to Linux because of Microsoft’s Windows 11 daily shenanigans? No way. Nobody saw that coming 🤣 www.theverge.com/tech/823337/...

The left side of this visual shows an image of many glowing galaxies in various shapes and colours, on a black background. A small box near the top of this image highlights a small collection of galaxies. This box is pulled out to the right side, showing the same area zoomed in. This region shows a small circular red galaxy in the centre, which is labelled “CANUCS-LRD-z8.6”. Credit: ESA/Webb, NASA & CSA, G. Rihtaršič (University of Ljubljana, FMF), R. Tripodi (University of Ljubljana, FMF)

Webb's #NIRSpec has helped astronomers weigh up a supermassive black hole in the early Universe – and found it much more massive than expected.

Read more 👉 www.esa.int/Science_Expl...
🧪 🔭

Webb First to Show 4 Dust Shells 'Spiraling' Apep, Limits Long Orbit - NASA Science NASA’s James Webb Space Telescope has delivered a first of its kind: a crisp mid-infrared image of a system of four serpentine spirals of dust, one expanding

Chaos! This *incredible* new #jwst image shows shells of dust emitted over the last 700 years by a system of 3 aging stars. The 2 main stars tear through space at an astonishing ~2000 MILES PER SECOND, whereas the 3rd star cuts through the dust like a knife. More: science.nasa.gov/missions/web...

How are redshift, temperature, distance and time related? Wavelengths stretch, distances grow, and temperatures cool as the Universe expands with time. How are the various cosmic parameters related?

How are redshift, temperature, distance and time related?

As the Universe expands, the relationship between redshift, distance, and time becomes anything but trivial.

Here in the 21st century, though, we've finally figured it out.
bigthink.com/starts-with-...
#space #astro #cosmology

New Gene-Editing Strategy Could Help Development of Treatments for Rare Diseases

New Gene-Editing Strategy Could Help Development of Treatments for Rare Diseases. Instead of requiring personalized gene edits for each patient, the new approach could create a standardized method to use for many diseases. www.nytimes.com/2025/11/19/h...

The US and the UK are going after bulletproof hosting companies.

United States, Australia, and United Kingdom Sanction Russian Cybercrime Infrastructure Supporting Ransomware
home.treasury.gov/news/press-r...

YouTube video by The Isogeny Club The Isogeny Club #7.4 Ihara zeta functions of abstract isogeny graphs and modular curves

Catch up on last weeks Isogeny Club talk! We welcomed Eli Orvis who taught us about abstract isogeny graphs: www.youtube.com/watch?v=Gzcc...

The limits of zero-knowledge for age-verification | Brave ZKPs are often advanced as a technical remedy, promising privacy-preserving attestations of age or eligibility. Yet their deployment in practice exposes both conceptual and practical limits.

from @claucece.bsky.social and other researchers at @brave.com:

brave.com/blog/zkp-age...

Releasing version 18 | Agama Almost three months have passed since our previous blog post, but that does not mean Agama

Agama 18 is out! The next-gen #Linux installer now comes with a cleaner, more intuitive storage UI. It has enhanced support for #DASD devices on S/390 and #JSON profile validation without running #Agama. More powerful installs for #openSUSE. agama-project.github.io/blog/2025/11...

This is worth watching.

An open white dome, with part of a telescope peeking through its opening at the top. The sky in the background is full of concentric white-ish circles, centered at the top of the telescope.

Hypnotising view of Paranal!

Yet the sky is not revolving around the tip of an Auxiliary Telescope. The illusion is caused by the alignment with the southern celestial pole, around which stars seem to trail due to Earth's rotation.

https://www.eso.org/public/images/potw2546a

🔭 🧪
📷 O. Castillo/ESO

We hear you, #CopernicusEU Sentinel-6B! The Inuvik Satellite Station in Canada has received the first signals from the satellite. The orbit has been reached, and telemetry has begun to arrive at ESA's mission control in Germany!

YouTube video by openSUSE openSUSE Conference 2025 - (Virtual Talk) GitOps meets dotfiles: Never Setup a New Machine Again!

Want your #desktop setup to follow #GitOps principles? Check out this #oSC25 talk on running your #WindowManager & apps in non-root containers, all from declarative #configs in #Git. Secure, #portable, version-controlled. #Linux #Containers #openSUSE youtu.be/KBWfGMUBGgI?...

GitHub - kavishdevar/librepods: AirPods liberated from Apple's ecosystem. AirPods liberated from Apple's ecosystem. Contribute to kavishdevar/librepods development by creating an account on GitHub.

LibrePods provides access to Apple's exclusive AirPods features on Android and Linux devices. Get access to noise control modes, adaptive transparency, ear detection, hearing aid features, customized transparency mode, battery status, and other premium features that Apple confines to their ecosystem

The government of Iceland now considers this a national security threat. www.arctictoday.com/iceland-sees...
And the Foreign Intelligence Service of Germany together with other German institutions published a National Climate Risk Assessment this year.
Here is what it says about #AMOC tipping risk.

YouTube video by Earth System Analysis - Potsdam Institute Is the Atlantic Ocean circulation close to tipping?

Is the Atlantic Ocean circulation close to tipping?
Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki.
Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊
youtu.be/ULJXqOZuY-8

Infographic showing the path of comet 3I/ATLAS, the third known interstellar object to enter our Solar System. It displays the orbits of Earth, Mars and the Juice spacecraft around the Sun, along with key dates and events as comet 3I/ATLAS travels through the inner Solar System in 2025. Coloured and numbered dots mark important observation points by telescopes and spacecraft.

ESA’s Mars and Jupiter missions observe comet 3I/ATLAS

@esa.int is making the most of its interplanetary missions to observe the comet from multiple vantage points. 🧪🔭

www.esa.int/ESA_Multimed... @science.esa.int #3IATLAS

Watch our webinar, “Post-Quantum Algorithms in cURL,” led by wolfSSL Senior Software Developer Anthony Hu. In this session, Anthony will cover a wide range of topics, from the fundamental concepts of post-quantum algorithms, including the #CNSA 2.0 timelines and the concept of “Harvest Now, Decrypt Post Quantum Algorithms in cURL

As we celebrate #curl Award Month, see how curl continues to innovate! 🏆
This video dives into post-quantum algorithms in curl — exploring CNSA 2.0, ML-KEM, ML-DSA, and how to stay #FIPS compliant in a quantum-safe world.

🎥 Watch now: