Seems a bit silly to presume that we know all other intelligent forms of life. The universe is quite large and you would be tempted to categorize all alien life as something supernatural, which seems like the more worrisome thing.

EWTN News

EWTN News explains: What does the Catholic Church teach about UFOs and alien life?

The Church has never pronounced dogmatically on the question of extraterrestrial intelligence, but Catholic thinkers over the years have contribute...