117-Year-Old Lowell Observatory Launches IndieGoGo Restoration Campaign | Video

Behind the scenes look at the Clark telescope, built by Percival Lowell to study Mars, that first discovered the expanding nature of the universe and mapped the Moon for the Apollo program. It is one of the largest refracting telescope ever built.
credit : Lowell Observatory - IndieGoGo Campaign: www.indiegogo.com/projects/restore-the-clark