http://www.independent.co.uk/news/sc...-a7598026.html
Ghosts definitely aren't real because the biggest science experiment in the world would have found them by now, according to Brian Cox.
People have wondered for perhaps as long as life itself whether people's spirits can live on in the world once their body dies. But the TV professor says that they definitely don't, since CERN's Large Hadron Collider (LHC) would have stumbled across one.
The LHC is the biggest particle accelerator ever built. It is includes a huge ring of superconducting magnets and accelerators that fling particles around, sending them into each other at such speed that they can be used to understand some of the most fundamental properties of the universe. In doing so, scientists can find out how elementary particles interact and behave, and understand how they work to compose the world that we see around us.
If ghosts existed, then they would need to be made purely of energy, since by their very definition they can't be made of matter. But if they were made only of energy, they would quickly dissipate, because the second law of thermodynamics proposes that energy is always lost to heat.
The only way that they would be able to avoid that would be to have an incoming source of their own spooky energy. But there is nothing to account for that in the standard model of physics or anything we've seen in the particle accelerator.
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The article pretty much sums up where science is at. People who believe in mediums and ghost naturally have no idea how they may actually work or exist, so in order for them to exist we would need to throw away such things as the large Hadron collider etc
Thus just to be safe its better to assume that Aunty Mabels friend who "has the gift" is probably lying or mistaken and keep the Collider and some basic laws of physics