Selected Topics in Astronomy
The Earth-Moon-Sun System
-- Explaining the Phases of the Moon and Eclipses.
Our Solar System
-- An Overview of the Nine Planets.
Stellar Properties
-- The Links Between What We See and the Basic Properties of a Star.
Stellar Evolution
-- The Aging of Stars.
The Milky Way
-- Properties of the Galaxy that We Live in.
Galaxies
-- What are They and What do They Look Like.
Active Galactic Nuclei
-- the Suspected Homes of Black Holes