If something is scientifically proven, it doesn't deprive anyone's free will to believe otherwise. It just makes them really stubborn and stupid.

Find aliens and you'll find your god

Aliens first. If ghosts are real we may find a scientific explanation for them and they probably aren't what we think they are. I find it highly unlikely that a living creature like bigfoot exists and yet no one has any real evidence. I have serious doubts that a god exists though I do find it humorous that people treat something so fantastical as though it has already been proven to exist and yet everything else is fantasy.

Alien Bigfoots (... Bigfeet?).

The Yeti is really just stories of the Gigantopithecus reaching modern times. A creature that is documented in the fossil record and definitely existed possibly as recently as 100,000 years ago. LIkely wiped out by our ancestors it is remotely possible that they have a terrible fear of humans and a small colony survives. However they have been discovered albeit discovered dead. So this one surely is the answer.

http://en.wikipedia.org/wiki/Gigantopithecus

Also alien just means foreigner someone not from the country they are living in. It has come to represent lifeforms from outer space but that's not its true definition. So they have already been discovered too.

If your a religious person then surely you accept god has been discovered already as there are stories of many people communicating with god in the bible. Of course it has no basis in reality and not a single supporting fact but if you do believe in god then surely you believe what is written in the bible.

Aliens, Bigfoot is just a way for people to make tons of money. No comment on the rest.

Can't the same be said about aliens? Just look at the History Channel.

Also true, but it is not like every year they almost find aliens. (at least I hope not) Like they do with Bigfoot.

Of course, they have to dedicate the rest of the time to Pawn Stars and documentaries about the next Mayan apocalypse.

Think we've discovered aliens allready, just in a micro-organism level :P