An international group of students observe the transit of Venus at sunrise from the roof of the papal summer villa in Castel Gandolfo, Italy, June 6. The students attending a Vatican Observatory summer school watched the rare occurrence of the planet Venus crossing the face of the sun. (CNS photo/Jesuit Brother Guy Consolmagno, Specola Vaticana) (June 6, 2012) See OBSERVATORY-VENUS June 6, 2012.