Lesson 1 - Lecture 3 - Scales of the Universe - OpenStax Astronomy 2e
Channel: Introduction to Astronomy
Date: 2023-04-07

In this lecture, we will look at the scales of the universe. We will star with Earth and work our way out to the great filaments and voids that make up the large scale structure of the universe. The idea is to try to grasp the idea of how empty our universe is. 

These lecture videos are designed to complement the content in the OpenStax Astronomy 2e textbook. The book can be downloaded free of charge at: https://openstax.org/details/books/astronomy-2e

I can be reached with comments at wagnerastronomy@gmail.com. However, classes I am teaching receive priority so I will try to respond as I can to questions.

Note: Lesson 0 materials are specific for the classes that I teach. Lesson 1 will start with Chapter 1 of the textbook.

You can access the most current versions through the following playlist: https://www.youtube.com/playlist?list=PLMahwAGxKuWlWcYdu2hPMmcD_pyQWkZ7J

These videos have been updated for 2023 and are being released under a CC-BY license so that others can feel free to adapt them for their use as long as attribution is given. 

Lecture slides are available for download here: https://drive.google.com/drive/folders/12JnRLzV-o4xl5KnJ39bGyK27qG7s0Lnw?usp=sharing They are currently available only in Apple Keynote format. As each chapter is recorded and I have verified that the slides are correct, I will load PowerPoint and pdf versions through the same link above.