Search for life = Religion?
In Ep 4 one of the interviewees, Roger Launius, claims that the search for extraterrestrial life requires the same kind of faith as belief in religion. His exact words are 'There's almost a religious belief that we will find it if we keep looking. It's based on faith and not knowledge in the same way that religion is based on faith and not knowledge' I found that a remarkably obtuse way of seeing this issue and it is demonstrably not the same thing or even alike. While I am sure that there are people -even scientists- who believe in both religion and/or ET life in the same manner, I don't think Launius's sweepingly generalised statement is really applicable to this matter.
Religious belief is faith in the unprovable. Searching for life is not faith in the unprovable. It is the very process of looking for empirical evidence that life might exist elsewhere. There's is a big difference between wanting to know if a thing is true or not, to simply believing that it is. The drive to want to know is a motivation all in itself entirely separate from any a priori beliefs. Religion is precisely not like that in any way.
Argued the other way round, is religion the search for empirical proof that god exists? Clearly not.
It's this kind of pseudo-science babble that's become pervasive in Nat Geo, History channel etc. type shows, and a pretty awful thing it is.