Matthias M. M. Meier
Meteorites, Museums, Mars, Mountains and many more things. Meteoriticist, Noble Gaser, Space Nerd, Family Man. Director of the Natural History Museum of St. Gallen, Switzerland. Private account (en/de).
🇨🇭🇸🇪🇲🇫🇪🇺🇺🇦 orcid.org/0000-0002-7179-4173
- Reposted by Matthias M. M. MeierA visual look at two possible orbits for Planet Nine—one based on @plutokiller & @kb4batygin’s model, the other inspired by a recent IRAS/AKARI paper (arXiv:2504.17288) by @takao_nakagawa, @AmosChen, @frosztfang, @NomisOh, and @seongjin_torres.
- Nice - noble gases and cosmic-ray exposure (CRE) ages of the CO chondrites. Primordial gases, signs of thermal and aquaeous alteration, and CRE ages between 0.17 and 78 (!) Ma. Surprisingly, not a single solar-gas rich regolith breccia among the >50 meteorites studied! Eckart et al. 2025, GCA.
- Unglaublich, dass Russland im vierten Jahr der völkerrechtswidrigen Invasion der Ukraine immer noch neue Marschflugkörper mit Schweizer Komponenten bauen kann. Das kann doch eigentlich nicht sein, oder? Da muss es doch Mittel und Wege geben? @spschweiz.ch @gruenech.bsky.social @glpch.bsky.social
- 🇷🇺 Ukraine’s intel reveals specs of Russia’s new S8000 “Banderol” cruise missile, used since April to hit southern Ukraine. Launched from Orion UAVs, it flies 500 km and carries a 115kg warhead. Despite sanctions, it’s built with many parts from foreign countries. war-sanctions.gur.gov.ua/components
- Wow - look at the road behind the gate! (the lamppost...) 😲🤯
- I am speechless... >> First fault movement ever filmed. M7.9 surface rupture filmed near Thazi, Myanmar m.youtube.com/watch?v=77ub...
- Lake Thun near Sigriswil, Canton of Bern, Switzerland.
