Personally I think it's just particles of energy, perhaps just electromagnetism or plasma that is so small they can't see it; certainly not matter as we know it...they make sound so spooky, I despise the term. More and more we (those that are willing to look) are seeing that we do not live in a gravitational universe...it's instead, electric, governed by +/- charges and N/S magnetism and these things connect and interact with everything. Just my thought at this time.
I just realized it's more easily viewed than the NetFlix version unless you cough up the whole $40 and have it shipped through a stateside address. I'd rather send a donation to the scientists
Just my thought at this time.