[Old School Hound]

I know I mentioned this guy before but it's worth another mention. If you like astronomy, this guy does some of the best astronomy stuff on the web.  Sometimes I will watch his videos when I lay down at night and will fall asleep to the sound of his voice. He is retired from a 40-year career in software development and has been doing astronomy videos on youtube for several years  Seems like he may have been a math and physics guy in college. He doesn't shy away from math and physics in his videos but he make it very understandable . He did a 16-part series called "How Far Away Is It" that was incredibly well done. Here's a more recent video where he is reviewing some things that happened in astronomy in 2020.