HYPER (Highly INteractive Particle Relics) is the new form of dark matter.

In some theories, dark matter and visible matter could interact in the young universe. The intensive heat and pressure pushed the particles together. So dark matter was part of the material. 

And then the universe started to expand. The universe's energy level decrease. And then dark matter and material interaction stopped. When we look at the three dominating things in the modern universe, the main dominator is dark energy. 

1) Dark energy

2) Dark matter 

3) Visible material. 

So in the young universe, dark matter and visible material were one entirety. Then that entirety broke. The thing was like nuclear fission. But on a different scale. Dark energy is wave movement that rips the universe into pieces. The origin of that energy is a mystery. The origin of that energy is in particles that we cannot see. 

The mystery of dark energy is that there is an interaction between that wave movement and visible material. Without that interaction, dark energy cannot rip the universe into pieces. But if dark energy is the remnant of some particles. 

That turned to wave movement a long time ago. There should not be any interaction between dark energy and visible material. 

That interaction means there is some common part between visible material and those particles. That remained a long time ago. 

But the weakness of this theory is that dark energy should travel at the front of the universe. So it should not exist in our universe. 

The thing, that makes dark energy interesting is that seems to be a weak and universal interaction similar way as gravitation. So in some ideas, the dark energy is the antigravitation.

Gravitation and dark energy are similar forces. They are both weak forces. So, could dark energy be the missing antigravitation? That's an interesting question. 

When the connection between dark matter and visible material breaks, that process released free energy. This means the dark energy or free energy that rips the universe in pieces is the remnant of that process.  But that thing is a simplified model. 

The problem with dark matter research is that nobody ever finds WIMPs (Weakly Interacting Massive Particles) that suppose to be dark matter particles. The problem is that nobody has ever seen that particle. 

In some theories, dark matter is a group of so high-energy particles. That it just cannot interact. One of the most interesting models explains the origin of dark matter like this: some eruption or "another Big Bang" released dark matter to time at a different moment than visible material. 

The dark matter comes after or goes forward to visible material in space and time. Because the particles have a different size than visible material, dark matter cannot interact. All theories about the form of dark matter are right before researchers can confirm the first interactions between dark- and visible material.  

There is one place in the universe where dark and visible materials are together. That place is the singularity in the center of black holes. Their massive gravitational pressure pushes dark matter and visible matter together. But the problem is that singularities are not very easily observable things. The gravitational waves can send information about things that happen inside black holes' event horizons. 

https://scitechdaily.com/hyper-highly-interactive-particle-relics-a-new-model-for-dark-matter/

https://en.wikipedia.org/wiki/Weakly_interacting_massive_particle

https://shorttextsofoldscholars.blogspot.com/