Astronomy Basics
OpenStax Ch. 1–4: science, sky, orbits, Earth-Moon system.
2 modules · 7 lessons · 8 hours
Module 1: Science & the Universe
1. Nature of Astronomy
Learn about nature of astronomy with readings, visuals, and checkpoints.
2. Laws of Nature
Learn about laws of nature with readings, visuals, and checkpoints.
3. Light Travel Time
Learn about light travel time with readings, visuals, and checkpoints.
4. Tour of the Universe
Learn about tour of the universe with readings, visuals, and checkpoints.
Module 2: Observing the Sky
1. Birth of Astronomy
Learn about birth of astronomy with readings, visuals, and checkpoints.
2. Orbits and Gravity
Learn about orbits and gravity with readings, visuals, and checkpoints.
3. Earth, Moon, and Sky
Learn about earth, moon, and sky with readings, visuals, and checkpoints.
Course Certificate
Complete all modules and quizzes to earn your AstroSphere certificate.