Why does the Vatican have its own observatory?

Do Jesuit astronomers really believe in aliens? The answer is neither yes nor no.

One component of the Vatican Observatory’s study of space is the search for evidence of extraterrestrial life. 

In this video, Kensington TV explores the Vatican Observatory’s engagement with the possibility of extraterrestrial life, the words of a Catholic saint that could be interpreted to suggest a peaceful coexistence between humans and extraterrestrials, and other alien-related inquiries.