I'm actually quite new to posting on these evolution threads and I have many questions. One would be "Is there any possible observation that could falsify the theory of EVOLUTION?"
It seems to me that evolution, as I've seen it discussed on Free Republic, is as vast as all of existence itself. In other words, no matter what is discovered, it can be incorporated under the big tent of evolution. It seems that "evolution" is used as a synonym for "whatever happened", "whatever happens", and "whatever will happen." Sorta like the God, Who "was, is, and is to come".
Another thought: because "evolution" is so all encompassing, touching on all of the cosmos as a possible factor of "natural selection" and able to incorporate all possible natural phenomena under the tent - what purpose does it serve? ... it's just a redundant layer of verbage added onto the cosmos.
You could think that, but you'd be wrong. You would have to be quite new to these threads to think that biological evolution covers anything other that the process of variation and selection. That's quite a chunk, but it isn't the universe.
Virtually all of your questions have an answer here: The List-O-Links. Look over a few of those links, especially in the first two sections.
"Is there any possible observation that could falsify the theory of EVOLUTION?"
A fossil record that showed that human beings co-existed with T-Rex would cause problems.