Scientifically speaking isn't there more proof that supports stuff in the Bible (dead sea scrolls, Jesus' death wrapper etc) than alien life existing on other planets? There might not be hence the question mark. Neither has been proven either way so wouldn't they both kinda be equal in that respect?
Dave: What observations of life? Nessie and Big Foot? Flying saucers? What about the dead sea scrolls isn't that an observation of artifact?
The Dead Sea scrolls only deal with Judaism, and have been dated from between 100 BCE to possibly 200 AD, but have little if anything to offer on the life of Jesus Christ or Christianity itself. What "proof" the Dead Sea Scrolls offer is that there is indeed a history of the same written "prescripts" that are found in the Torah and Judaic teachings as have been found elsewhere.
The Shroud of Turin is a proven fake. It is a medieval forgery that, although very cleverly done, and obviously done by someone with a great grasp of the technology of the time, could NOT be true, even if a suspension of disbeleif is granted. Firstly and foremostly, a cloth wrapped around a human face and supposedly recording "imprints" of that face would be hugely distorted on a cloth when viewed in a purely two dimensional framework, if nothing else.
Where as the "search" for extraterrestrial life is still a guessing game, but it is one that is based on what we know and understand about physics, chemical processes, and biology here on earth, even in the most harsh conditions. It is more accurately termed a "what if" sort of game where those who research it say "what if" and then try and work backwards, if you will. Still, it is all speculation, although speculation at least based on some tangible scientific facts.
Oh, BTW, another movie I have not seen mentioned here is 2010, the sequal to 2001, both written by Arthur Clarke. The premise in 2010 is totally impossible, Jupiter would NEVER have enough critical mass to become a mini star. But, there IS some serious speculation out there about Jupiter's gravitational effects on Europa, which DOES seem to have more water per measure of surface area than even Earth - and with the frictions that the gravity would cause, there would be lots of internal stresses and thus heat and maybe even volcanism. But heck, we are even decades away from probing Europa decently, so I am not worried about Twilight Zone aliens or Independence Day nasties landing here. Heck, if the alien probes ARE true, it would seem that they find us most wanting, since they invariably dump their captured victims back here to tell us all of the ordeals they faced...
I do not jest, I once had a client/customer who swore to me that she and her daughter had weird unidentifiable metal fragments in their knees and other parts of their bodies that doctors could not extract... but she knew all too clearly that it was a result of when she passed out one night after seeing a bright unexplained light in the sky...
I call it imagination and a few too many pain pills - she also was diagnosed with fibromyalgia and popped more pills and quack health remedies than you would even believe...while she continually tried to con me into okaying huge expensive purchases of jewelry et al from her severely disabled husband's trust fund...
I trust Occam's razor on most of such things.