The Pope (via the Vatican’s head astronomer) says that believing that alien life could exist elsewhere does not conflict with the Catholic faith:
The Rev. Jose Gabriel Funes, the Jesuit director of the Vatican Observatory, was quoted as saying the vastness of the universe means it is possible there could be other forms of life outside Earth, even intelligent ones.
“How can we rule out that life may have developed elsewhere?” Funes said. “Just as we consider earthly creatures as ‘a brother,’ and ‘sister,’ why should we not talk about an ‘extraterrestrial brother’? It would still be part of creation.”
In the interview by the Vatican newspaper L’Osservatore Romano, Funes said that such a notion “doesn’t contradict our faith” because aliens would still be God’s creatures. Ruling out the existence of aliens would be like “putting limits” on God’s creative freedom, he said.
It looks like science fiction’s secret plan to place copies of The Sparrow randomly around the Vatican finally paid off!