Patrick Koppenburg 🐧

koppenburg.ch

24 September 2026 15:58

24 September 2026: An unexpected particle bsky.app/profile/kopp...

arxiv gr-qc

arxiv-gr-qc.bsky.social

24 September 2026 15:57

Jean-Pierre Luminet A Primer on Spacetime Singularities II: Spatially Homogeneous Cosmologies https://arxiv.org/abs/2609.25112

Mario Livio

mariolivio.bsky.social

24 September 2026 15:56

The Twin Jet Nebula, or PN M2-9, in this Hubble image, is a striking example of a bipolar planetary nebula.

Freya Blekman

freyablekman.bsky.social

24 September 2026 15:55

Fresh off the press: next year there will be another CERN open day: 24, 25 and 26 September 2027 ! (pic: a group I took to visit the CMS detector at one of the collision points of the large hadron collider. For CMS visits, guides have a white helmet, visitors in orange, or sometimes blue)