Complex Dark Matter

After a century of study, scientists have come to the realization that the ordinary matter made of atoms is a minority in the universe.  In order to explain observations, it appears that there exists a new and undiscovered kind of matter, called dark matter, that is five times more prevalent than ordinary matter.  The evidence for this new matter’s existence is very strong, but scientists know only a little about its nature.  In today’s video, Fermilab’s Dr. Don Lincoln talks about an exciting and unconventional idea, specifically that dark matter might have a very complex set of structures and interactions.  While this idea is entirely speculative, it is an interesting hypothesis and one that scientists are investigating.

Related video:
http://www.youtube.com/watch?v=THT_BAdKe6g