He took the first photos with his brother in March 2012 in the desert near Topah, Nevada. It was then that he realized the monumental work that would be involved and decided that he had to quit his job.
While shooting in the U.S., he would drive with his father all day and shoot all night. The locations had to have as less light pollution as possible, had to be as high as possible and with less water vapor. Some of the locations included the Chiraichaua Mountains in Arizona, near fort Davis, and Lassen National Forest in California.