Some years ago a priest responsible for a welfare center put a sign out  in front with the words: "Aliens not welcomed." It was an attempt at  humor, welcoming all to the center. 
A staff member jokingly asked, "Aren't they also God's children?" Writing in the Window from The Ark  column in the Catholic Times, the priest recalls that the incident was  the prelude to thoughts on a subject he was not familiar with: other  inhabited worlds, other people we call extra-terrestrials.  
One  of the students who frequents the center  asked the priest in all seriousness: "Father, if I am made from the DNA  of an alien, does that  mean that my head, as I get older, will develop into the head of an  extra-terrestrial?" The priest was stupefied by the question and asked  the student why he thought that was possible. It was then that he  realized what the  student had been seeing in the mass media. Doing his own search on the  internet, he was surprised by what he found. 
He soon began asking himself what would he do if he met one of  these aliens, in the future or in the present? He also came to realize  how much interest in aliens there was in our society and that there is a  religious movement, the Raelians, who believe they have the DNA of  aliens. However, he believes it important to remember that Internet  information on extra-terrestrial life is presented without any  supporting factual evidence, that no sources are given for the pictures  shown, and that the explanatory theories offered are, in his words,  "without the least semblance of credibility." Though most people know  this, it does not prevent some from believing that extra-terrestrials  are here, disguised, living among us.   
The priest mentions the well-known astrophysicist Carl Sagan and  the influence of his 1980 television  series: Cosmos: A Personal Voyage.  In his science fiction novel Contact  the protagonist says: "If this universe was made for just one  type of  intelligent creation, it was a great waste." He reminds us that Sagan  was agnostic  and felt that religion was close to superstition.  
Our response  to all this, the priest says, is far from clear, but we can't just  ignore it.  There are many young people who refer to the words of Sagan  when asking us about extra-terrestrial life.  What should be our  answers? he asks. If there are other worlds and other intelligent  creatures living there, then aren't they our brothers? It's a question  that young people are facing and struggling with. What are we to say to  them, when we see their faith being challenged? These are the thoughts  that came to the columnist as he looked out the window of his 'Ark' and saw that the rain was still falling.
 
