The Invisible Scaffolding Holding Galaxies Together

The Hang Theory. A lecture series by Hang Dallas.One speaker. One big idea. One good room.Where · 2700 SWISS Event Space.Most of the universe is made of things we have never seen. Dark matter holds galaxies together. Dark energy pushes the cosmos apart. Together they account for 95 percent of everything, and no one has directly observed either one. Dr. Heidi Wu walks through what we know about these invisible forces, how cosmologists infer their presence, and why their nature remains one of the field's central puzzles.How the night goesDoors at 6:00 PM. Come early, grab a drink and something to eat, settle in.Heidi takes the floor at 7:00 PM.Questions from the room near 7:45 PM.Afterward, stay for a glass of wine with Heidi. The best conversations happen then.