Do a search for yourself. There's more articles citing scientific sources.
It's obvious that beings who can manifest themselves into a "fog" or whatever and lower air temperatures are not made of carbon and water. Fluorescent lights use plasma to brighten up. Not hard to put the puzzle pieces together.
Scientists have created a laser-cooled neutral plasma for the first time that will be used to simulate some of the hottest and most exotic matter in the universe.
www.vice.com
Looks like "life" heats water and cools plasma.
I should add, the time when an apparition showed up on my ID at Yale, I did feel some strange pressure in front of but had no idea what to make of it, so just ignored it. The woman who was screaming after taking a photograph sure got to see it was something. She was terrified. I couldn't believe that had happened. I am not someone who goes on blind belief. I seek proofs.
However, no more from me on this. But I fully "believe" (or know) that alien life forms (including "ghosts", poltergeists, etc) are plasma based.