Brian Koberlein, umwarimu wigisha ibijyanye n'imiterere y'ibigize isanzure kuri Kaminuza ya Rochester Institute of Technology muri Amerika, asobanura ko ibyo biterwa nuko ubuso bw'ukwezi bugarura urumuri rw'izuba, ko ari yo mpamvu bigaragarira mu mafoto acyeye cyane.
