Dark matter is about 1/3rd of the universe and dark energy makes up almost the rest of it. What we know about in science is only the visible universe which about 1% of the universe. So science is ignorant of 99% of the universe. We can only guess from various theories what particles comprise dark matter and energy.

Much has been made in other recent posts on this forum that natural law does not allow for things like god or the supernatural. Well, natural law has informed us that we only understand 1% of the universe. We do not even know what the rest of the universe is made out of.

Here are some of the possibilities that have been suggested for dark matter. Axions, WIMPs, neutrinos, quintessence, photinos, shadow matter, supersymmetric matter. Search on any of these items and on dark energy and matter and you will find much on-line info.

Axions are my favorite because GUT theory says that they are at absolute zero, and are extremely light and numerous, perfect for a super fluid.