(OSV News) — In an era of vocations undeniably impacted by a statistically declining priesthood, it's perhaps among the rarest of Catholic news headlines: Seminary opens. And yet, in the Diocese of Phoenix – established in 1969, populated with 2 million Catholics, and covering 43,967 square miles – that's indeed the story, as the diocese and the University of Mary's Mary College at Arizona State University (ASU) have partnered to establish a full seminary: Nazareth Seminary. Since 2012, the University of Mary – a private, Benedictine college near Bismarck, North Dakota – has offered Catholic studies courses at ASU. But with Nazareth Seminary, the Diocese of Phoenix has now entrusted the University of Mary with the academic formation of its…