The Universe

• age

• Big Bang Theory

• Blue and red shifts

• size comparison with galaxies and solar system

Stars

• classification

• Luminosity and Temperature of stars chart

• process of how a star generates energy

The Solar System

• asteroids, comets, meteors

• characteristics of planets

• terrestrial vs Jovian planets

• eccentricity of an ellipse for planets orbits

• heliocentric and geocentric models of solar system