Tim Chrisman is launching his new book, “Humanity In Space”, available through through Amazon. This book is targeted at people interested in space, but scared of the math. More information is available at the website: https://www.future.humanityinspace.com
Cave Drawing For The Space Age By Tim Chrisman, A New Look For Space
Cave Drawing For The Space Age By Tim Chrisman, A New Look For Space, updated 9/7/20, 1:31 PM