IMO, and just my opinion because I'm a Christian, There is NO other life other than what was covered in the Bible. If there is space aliens, they are either demons or angels, otherwise I believe it is just wishful thinking by non believers to prove the Bible a mistake. All other opinions are people wanting money to study nothing. A whole industry( which I support,BTW) NASA needs money for pure research. I love science, but what is going on today is more religion than science. Their religion DEMANDS that there MUST be life elsewhere and that will prove there is no God. It has nothing to do with establishing facts, but furthering unprovable myths that change every few years.
Any anomalies that don't fit their paradigm are just thrown overboard until they can no longer support the theory and look sane. Many scientific carriers have ended trying to go against the accepted theory only to be proved wrong later.
