Expand all + The Sun 8B10.10 - 60 W Sun8B10.50 - Sunspot on the Overhead8B10.60 - Random Walk with Bumble Ball + Stellar Evolution 8B30.30 - Variable Star Simulation8B30.40 - Collapsing Star - Hoberman Sphere8B30.50 - Supernova Core Bounce8B30.65 - Pulsar Model8B30.75 - Pulsar Recordings8B30.95 - Forward and Backward Scattering + Black Holes 8B40.10 - Black Hole Surface8B40.20 - Membrane Hoop