There is a lot of things in catholisim that are beyond what we know in science. Uncorrupted saints, stigmata, aparisions, bi location or some of the many "weirdnesses" that can come from true spirituality.
If you step away from this being about religion and classify it as extremes of spiritual relem there are many many things that would have scientists scratchign their heads.
Turin shroud, which was proported to be the cloth that wipped jesus on his way to crusifiction was found to be a fake, but what they couldn't understand was the elvels of radiation on it. I suspect this cloth will come back wht alternative scientific method which proove the proovings wrong... and so it goes on. Lots of oddities in the world
I'm a little conflicted by the idea of the incorruptibles, as a concept rather than an actuality it is something I think is fantastic, along with the whole idea of saintliness altogether (I bought a book on saints lately and only just got to the chapter in William James' varieties of religious experience on it).
There are sinister dimensions to the stories though, if nothing else if incorruptibility is a criteria for saintliness, ie being in heaven beyond a shadow of a doubt, there may not be that many people who are there.
yes the uncorruptables are a wee bit weird, but all true spiritualitiy is pretty insane, the whole talkign in tounges etc - v strange.
Try looking up Padre Pio who I think is only fairly recently been made a saint, at some point during one of the wars guided airman home as a bi location, must be very weird to see a flyning preist shwoing you the way several thousand feet up????
Even Napoleon was uncorrupted for many years (not sure about now though). Due to large amounts of arsenic, I believe. When his body was first relocated, they freaked out and some thought there was divinity at work. So.. you never know. Someone could have done the same thing to the bodies of religious people. I think people like Bernadette were saintly (in the virtuous and mystical sense), but those surrounding them in the church aren't necessarily saints and not beyond using deceptive methods to make them appear more miraculous or magical than they really were.