Solar_land_area 872Leave a Commenthttps%3A%2F%2Fraymundeich.com%2Fthe-fermi-paradox-and-the-drake-equation-the-longevity-of-high-tech-civilizations-l%2Fsolar_land_area%2FSolar_land_area2014-06-26+19%3A59%3A58raymundhttps%3A%2F%2Fraymundeich.com%2Fwp-content%2Fuploads%2F2014%2F06%2FSolar_land_area.png / By raymund / June 26, 2014