"Just as there is a multitude of creatures on Earth, there could be other beings, even intelligent ones, created by God. This does not contradict our faith, because we cannot put limits on God's creative freedom." ~Rev. Jose Gabriel FunesThat's what God did on the 7th day. He got all wacky with his creativity on Planet X.
Personally, the Catholic Church searching for intelligent life outside our solar system strikes me as a really desperate membership drive.