About the Astronomy Introduction Lesson
This lesson is designed to be an introduction to what astronomy is and what it studies.
• To be able to define astronomy.
• To be able to list the planets.
• To be able to identify different types of celestial bodies.
The word ?astronomy? comes from the Greek words ?astron? (which means star) and ?nomos? (which means law). Astronomy is the study of celestial objects like stars, planets, galaxies, and comets. It is one of the oldest sciences. Early astronomers would study the night sky with the naked eye, and the invention of the telescope was needed in order for astronomy to become a modern science. Galileo was credited with improving the telescope, which allowed astronomers to see the celestial bodies more closely. This enabled them to make more accurate observations of celestial bodies like stars.