Pope Leo XIV celebrated his first mass in the Sistine Chapel, where he was elected less than 24 hours earlier. He prayed that his historic papacy can help the Catholic Church be a beacon illuminating "the dark nights of this world.

Newly installed Pope Leo XIV will hold a Mass with cardinals in the Sistine Chapel on Friday, a day after he was elected as the surprise choice to be the leader of the Catholic Church, becoming the first American pontiff. Rachel Judah has more. Would you eat 3D printed plant-based beef?

Pope Leo XIV held the first mass of his papacy Friday morning in the Vatican's Sistine Chapel with the cardinals who elected him leader of the world's 1.4 billions Catholics and Vatican head of state