**Mirror Mirror on the Wall: the story of reflection groups and fractal sphere-packings**

**Mirror Mirror on the Wall: the story of reflection groups and fractal sphere-packings**

**Tuesday, August 31 at 8:00 pm ET (New York)
In person and live-streamed**

Join Alex Kontorovich, MoMath’s Distinguished Visiting Professor for the Public Dissemination of Mathematics, in his final talk of the season. Discover how geometry and arithmetic can interact in unexpected ways to form fractal sphere-packings from reflections in curved mirrors.

You can join this event **in person** at the Museum (11 East 26th Street) — or **online** by participating in a live-streamed broadcast of the event.