Astronomy Cafe – Oct 20, 2025

Dark Sky Reserve - Hanle, Ldakh, India

Intro – Chris Purse; New maps of the Apollo 17 LRV traverses (of the Moon) – Phil Stooke; M42 Orion Nebula – Dave Payne; The friendly skies – Saskatchewan Star Party ; Comet I3/Atlas – Randy Enkin; Dark Sky Reserve – Hanle, Ldakh, India – Natasha van Bentum; Space Mission News – Chris Gainor; Events – Lauri Roche, Dave Payne; Comets: C/2025 A6 (Lemmon) and C/2025 F2 SWAN – Randy Enkin & David Lee

Presentation: How Friction Creates a Galaxy’s Spirals – David Payne

CEERS Crop (NIRCam Image) - Image: NASA, ESA, CSA, Steve Finkelstein (UT Austin)

Date/Time: Wednesday September 10, 2025 starting at 7:30PM Location: University of Victoria, Bob Wright Centre, Lecture Theatre A104. The recent discoveries by JWST et al regarding the early, quick formation of galaxies are leading scientists to question the status quo mechanisms of galaxy creation. In this talk, a scientist-from-another-mother brings a multidisciplinary approach to this question that incorporates dissipative (friction) forces, thermodynamics. free body mechanics, and even chemistry to the non-linear dynamics involved.