This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
smithsonian institution smithsonianinstitution astronomy astronomer yerkes observatory yerkesobservatory telescope george a. van biesbroeck georgeavanbiesbroeck george van biesbroeck georgevanbiesbroeck van biesbroeck vanbiesbroeck man science scientist standing mars twenties steampunk scienceseeker smithsonian institution archives