Members of the Citizen CATE experiment prepare at their “dark” site in Carbondale

Members of the Citizen CATE experiment prepare at their “dark” site in Carbondale

Members of the Citizen CATE (Continental America Telescopic Eclipse) experiment, a nationwide effort collecting images of the total eclipse and the sun’s corona, prepare at their “dark” site in Carbondale, Illinois, U.S., August 20, 2017, one day before a total solar eclipse in the city.