Matthias M. M. Meier

The upward redistribution of wealth over the past 50 years has shifted $80 trillion from the bottom 90% of Americans to the top 1%. That’s $80 trillion that would have gone into the paychecks of the working class. The greatest trick of all is trickle-down economics.

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Good overview! I hope MMX🇯🇵 will finally resolve the question of how the moons of Mars formed. And perhaps also, whether Phobos could be the site of a future crewed base from where humans could explore Mars remotely (initially). Really impressive how Japan has built upon the legacy of Hayabusa! 🚀🛰️🪐

JAXA's MMX has separated from the 2nd stage and is on its way to Phobos and Deimos, the moons of Mars. The 13 scientific instruments include 2 from the US and one from CNES/DLR. Arriving at Mars in August 2027. Will collect samples from Phobos, returning them to Earth in 2031.

Far from advocating terraforming, this article makes the reasonable case that any rushed attempt to terraform Mars (e.g. with the nanoparticle approach, but the argument works for any) will degrade and even destroy irreplacable geologic archives and perhaps even frozen simple life-forms.

Oh yeah I know that one. Switzerlands meteorite #12.

How I arrived on Bluesky.

New from @timnitgebru.blacksky.app and me: "It is high time for us to regulate usage of systems sold as “AI”, not because they are magical machines, but because they are error-prone products that shouldn’t be used in high stakes scenarios." www.theguardian.com/commentisfre...

Wir müssen aufhören, das „außer Kontrolle“-Gefasel der KI-Firmen nachzuplappern. Die IT-Security-Risiken von KI liegen woanders, meint Sylvester Tremmel. #Künstliche Intelligenz

🏔️ Nearly 20% in five years. That's how much #glacier ice #Switzerland has lost since 2021 - with more than 5% disappearing in 2026 alone, according to @matthias-huss.bsky.social (GLAMOS & @vaw-glaciology.bsky.social) and @scnat.ch. Learn more here 👉 scnat.ch/en/id/Y6p3L #ClimateChange

Sanghi et al. arxiv find a 8 M_J super-Jupiter around one of the stars of the nearby 61 Cygni AB system! Depending on the planets' orbit (5-11 a.u.), it might disrupt the habitable zone of that star. Which just means the Tellarites have to live on a planet orbiting the other star... 🪐😉🐷

The techbros don't want you to see this trailer. Pass it on.

SPOT ON für das erste deutschsprachige Interview von @nohillside.ch und mir mit dem Deutschschweizer CEO (did you know this?) der @bsky.app: @toni.bsky.team 😎 Toni Schneider spricht über seine Vision für das Athmosphere-Ökosystem und welche Rolle die CH bei Bluesky spielt.. dnip.ch/2026/09/23/i...

From @timnitgebru.blacksky.app and me on what we should take from the 2026 summer of AI hype: www.technologyreview.com/2026/09/22/1...

If @science.org is covering it, I guess I should share something here- we have for the first time definitively detected radio emission from a planet around another star! 🔭🧪🎢 What does this mean? Details in thread! (But TL;DR- still not aliens) 🧵 www.sciencenews.org/article/exop...

Sommer 2026: 16.000 Hitzetote 🥵 alleine in 🇩🇪. Dürre. Brände. 🤯 Die Bundesregierung subventioniert jetzt mit 2.500.000.000 € von unseren Steuergeldern die Ursache der Hitze: fossile Brennstoffe. Unfassbar. 🤯🤯🤯 Das meiste Geld landet dann wieder bei den Ölkonzernen, der Lobby gegen Klimaschutz.

Seit Tagen wird wieder darüber debattiert, ob „KI“ zu gefährlich ist. Die Warnungen sind nicht neu und die Branche hat andere Interessen, kommentiert tante. #Künstliche Intelligenz

Free newsletter: The idea that we're nearing the creation of AI systems that we can't control and that pose an existential threat to humanity is a lie and a distraction from the tangible harms and problems caused by LLMs and AI labs' near-unlimited resources. www.wheresyoured.at/ai-is-alread...

🛰️ La mission EnVision de l'ESA pour Vénus est repoussée de 2031 à 2032. Le JPL de la NASA devait fournir VenSAR, le radar qui voit la surface à travers les nuages avec une résolution d'environ 10 mètres. Mais faute de moyens, il ne le construira pas. 1/2

In other words: we should and could build research outposts there, but it's unlikely larger cities will be built on the Moon any time soon. Which, incidently, makes a lot of sense anyway.

It's been really exciting to work with @jayke.io, @gradientrider.bsky.social and the rest of this amazing team using JWST's AMI mode to find a fifth candidate planet in the classic HR 8799 system!

Here's a link for today. #StarTrekDay #StarTrek #GeneRoddenberry #ItsGoingToBeOkay

The most sensitive search for exomoons ever - moons 2.5x smaller than Europa are excluded! And around a temperate Earth-sized planet to boot. What’s really neat is that, for the first time, we can confidently say another Earth does not enjoy total Solar eclipses. arxiv.org/abs/2609.05301

Quite enjoy getting this sort of alert. An asteroid has just been discovered before it’ll hit Earth! It’ll enter the atmosphere just northwest of Australia. (Don’t worry: it’s ~1m long, so it’ll just make a cool, brief fireball. We aren’t all about to die.)

In case you still think everything is better with AI...

Nur Zufall, dass ein Unternehmen der Familie #Blocher – die hinter der #Neutralitätsinitiative steht – in #Russland wichtige Elemente für Kamaz, UAZ, GAZ und AvtoVAZ produziert? Kamaz baut u.a. Trägerfahrzeuge für Raketenwerfer, Panzerfahrzeuge und Militärlastwagen. www.republik.ch/2026/09/04/d...

New way to form the Moon just dropped, featuring new modelling by yours truly: iopscience.iop.org/article/10.3...

The universe around us is not static at all. Throughout the Milky Way, clouds of gas and dust are clumping together, constantly giving birth to still hidden new stars. I took this #astrophotography of the Elephant Trunk Nebula with my #Celestron #Origin right from the center of a city.

Apologies if you've heard this story before but with tomorrow's launch of the Nancy Grace Roman space telescope I’m gonna tell it again. April 1997, I was a new postdoc at @carnegiescience.bsky.social 's Dept of Terrestrial Magnetism (now Earth & Planets Lab) and was asked to give dept seminar. 1/ 🔭

Le Guin wrote "The Lathe Of Heaven" in 1971.

There is so much ground a good Trek series could cover right now. Electing villains and wars of choice. Mass deportations and extrajudical killings. Relying too much on artificial intelligence. Longlivety and the superrich. And what do we get instead? A muppet episode. So silly. 🙄 #SNW #StarTrek

Make a band bigger: Empress

Optimist: the cup is half full Pessimist: the cup is half empty Planetary scientist: the fact that there is water in the cup is not surprising in the context of my brand new chondrule formation model. Let me explain...

This has huge consequences for our understanding of life in the universe. If abiogenesis were a cosmologically rare event, it would be extremely unlikely to happen twice on the same planet. Therefore, this means life arises whenever and wherever the right conditions are given.

Hi, I am a random water fountain in Geneva! Or wanting to come feet first into the world. Or a big truck on the highway near Flagstaff. (introduce yourself with a thing that almost killed you)