Models of the Universe

• 8C10.05 - Cosmological Models
• 8C10.10 - The Big Bang
• 8C10.20 - Cosmic Microwave Background
• 8C10.25 - Steady State, Expanding, Contracting Universe
• 8C10.30 - Expanding Universe
• 8C10.39 - Expanding Universe
• 8C10.50 - Galaxies - 1000 Megaparsecs
• 8C10.52 - Milky Way Galaxy
• 8C10.55 - View of the Galactic Center from a Spiral Arm
• 8C10.60 - Galaxy Model/Spiral Galaxies
• 8C10.70 - Radio Galaxies
• 8C10.75 - AGN - Active Galactic Nuclei
• 8C10.76 - Galaxy Halo
• 8C10.80 - One Million Galaxies
• 8C10.90 - Globular Clusters

Gravitational Effects

• 8C20.10 - Klein Bottle
• 8C20.20 - Moebius Strip
• 8C20.25 - Lagrange Point - Lagrangian Location
• 8C20.30 - Saddle Shape
• 8C20.35 - Non-Euclidean Geometry
• 8C20.40 - Gravitational Lens
• 8C20.50 - Cosmic Web, Gravitational Waves - LIGO
• 8C20.53 - Gravity Sandbox
• 8C20.55 - Gravitational Waves - Spiraling Black Holes
• 8C20.60 - Quasars
• 8C20.70 - Cosmic Strings
• 8C20.80 - Dark Matter
• 8C20.90 - Dark Energy