Trevor OK Hello there, this is Professor Jim Cafe based in Springfield, Missouri. Welcome to my YouTube channel and welcome to 10 Minute Astronomy. 10 Minute Astronomy is a series of 30 lectures that are 10 minutes or less each. In 2021 we've added really great closed captions for the deaf and hard of hearing. We have updated a lot of stuff. We've added 15 minute videos that tell you what each lesson is going to be about. What are they about? Well they go all the way from the beginnings of the universe to observing in today's world our old dead astronomers like Galileo and then we move into the source system. All the planets, comets go out to the sun and use that as a basis for all the other study of stars and then go out to how the stars live their lives and die and sun come into supernovas or black holes or white jures. Then we go on to galaxies including the Milky Way galaxy or other galaxies and then the big one in chapter 29, the big bag. Then we end with life on the universe. Life in the universe did ever exist. These lectures are open free, open educational resources. What does that mean? It means you can share them, you can use them with a class, you can use them in your classroom with your home school friends, home school children, you can use these lectures or just enjoy them and share them as you like. Give me a big favor and like and share the videos and channel and then go over here and hit that subscribe button. I really appreciate it. Again, welcome to 10 minute astronomy and welcome to my channel. I'm Professor Jim Kathy.