David J. Eicher is one of the most widely recognized astronomy enthusiasts in the world and is Astronomy magazine's Editor-in-Chief, and is an Explore Alliance Ambassador. 

His latest book is titled "GALAXIES Inside the Universe's Star Cities", in this lecture that was broadcast live on Explore Scientific's Facebook page on April 28th of this year, David gave an enlightening discourse on the latest findings of the galaxies that populate our universe.  With never-before-published astrophotography from the archives of Astronomy Magazine, this talk will truly give you a mind-expanding experience.