VATICAN CITY (CNS) -- Scientific discovery and knowledge are meant to benefit all of humanity, Pope Leo XIV told young astronomers."Be generous in sharing what you learn and what you experience, as best you can and however you can," he told them during an audience at the Vatican June 16.The pope spoke to dozens of young astronomy students and scholars who were taking part in a monthlong summer school sponsored by the Vatican Observatory and held at the observatory's headquarters in Castel Gan...