Astronomy in Action

Astronomy in Action

Textbook author Stacy Palen has created 23 videos, which are a mixture of live demos and mini lectures. These videos can help you prepare for class or review what you’ve learned.










  • Chapter 1. Thinking Like an Astronomer
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 2. Patterns in the Sky—Motions of Earth and the Moon
  • Chapter 3. Motion of Astronomical Bodies
  • Chapter 4. Gravity and Orbits
  • Chapter 5. Light
  • Chapter 6. The Tools of the Astronomer
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 7. The Birth and Evolution of Planetary Systems
  • Chapter 8. The Terrestrial Planets and Earth’s Moon
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 9. Atmospheres of the Terrestrial Planets
  • Chapter 10. Worlds of Gas and Liquid—The Giant Planets
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 11. Planetary Moons and Rings
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 12. Dwarf Planets and Small Solar System Bodies
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 13. Taking the Measure of Stars
  • Chapter 14. Our Star—The Sun
  • Chapter 15. The Interstellar Medium and Star Formation
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 16. Evolution of Low-Mass Stars
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 17. Evolution of High-Mass Stars
  • Chapter 18. Relativity and Black Holes 
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 19. Galaxies 
  • Chapter 20. The Milky Way—A Normal Spiral Galaxy
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 21. The Expanding Universe 
  • Chapter 22. Cosmology
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 23. Large-Scale Structure in the Universe 
  • There are currently no Astronomy in Action videos for this chapter.

  • Chapter 24. Life
  • There are currently no Astronomy in Action videos for this chapter.