Dr Dan Jones

hookean.bsky.social

02 October 2026 13:29

Stunning three-colour composite of NGC 253 by a Year 9 GCSE Astronomy pupil at Haberdashers' Monmouth School! 🌌🔭 Captured using a remote telescope in Australia via The Schools' Observatory, this brilliant spiral galaxy lies 11 million light-years away. ✨ #Astronomy #iTeachPhysics

Ari Markowitz

arimarkowitz.bsky.social

17 September 2026 15:54

Ok I think I know the answer. It helps to imagine what would happen if a collapsing shell suddenly changed its mind and stopped collapsing. The rock in the middle is just chilling inside of an increasingly dense shell of matter that is obscuring our view of it.

Lincoln’s Kayak 🫘

lincolnskayak.bsky.social

28 May 2026 14:18

This has nothing to do with black hole event horizons, i just thought it was funny. (Not for the spirits who once inhabited the bodies found in the lake though, of course) Does dark matter fit in to event horizons in any way?

Lincoln’s Kayak 🫘

lincolnskayak.bsky.social

28 May 2026 14:17

So I was trying to read about this in article form & I often use “look up” feature to define terms I’m not familiar with (again, not a scientist just a fascinated fan of physics) Anyway, this is what the internet used to help me understand “Kerr-like bodies”. Seems letters “a” & “i” are problematic

Lincoln’s Kayak 🫘

lincolnskayak.bsky.social

28 May 2026 11:55

So more like this GIF?