Because dark matter has not yet been observed directly, if it exists, it must barely interact with ordinary
baryonic matter and radiation, except through gravity. Most dark matter is thought to be non-baryonic; it may be composed of some as-yet-undiscovered
subatomic particles. The primary candidate for dark matter is some new kind of
elementary particle that has
not yet been discovered, in particular,
weakly interacting massive particles (WIMPs). Many experiments to directly detect and study dark matter particles are being actively undertaken, but none have yet succeeded.
I do not think that dark matter and dark energy exist. This is why they cannot be seen in the lab. These concepts appear to be simple bandaids, that have been added, so existing theory does not have to be more heavily revised.
The main reason for this predicament is due to the concepts of relative motion and relative reference. In other words, if there is no absolute reference and only relative references, how do you close the universal energy balance? It will be different for each relative reference, but unique only if reference is absolute. Energy Conservation and a universal energy balance needs an absolute reference.
Let me illustrate this conceptual problem with an example. Say there is a train approaching a station. There is also a man sitting at the station, waiting for the train. To pass the time, the man assumes that motion and reference is relative. He assumes he is the one who is moving, and the moving train is stationary.
This may appear visually true to the man, based on what he sees. However, if we do an energy balance, a train in motion, has way more kinetic energy, than a man in motion, if both are moving at the same relative velocity. A train weighs hundreds or thousands of tons and all define way more energy for the same velocity.
If the man insists that his relative reference is valid, he will be short the universal energy balance by a lot of energy, since his relative reference will not take into account the train's huge kinetic energy. His assumption will zero that out. He cannot destroy energy that way. This essentially what happened in astral physics, due to the idea of relative motion. Dark energy and Dark matter are needed to close the energy balance, due to the wrong choice of relative reference, as other data adds more energy, than expected to the universal energy balance.
This problem in astral physics is an artifact of the type of data we collect from the universe. Nearly 100% of the data we get from the universe is based on some type of energy emissions. These range from radio waves to gamma rays and all in between. This type of data limits us to only the sense of sight; eyes and sight based machines for other wavelengths. Einstein warned that this will make reference appear relative. Science cannot use any other sense, such as touch, by default. There is no sensory checks and balance. The kinetic energy of the train cannot be determined with the sense of sight alone. However, that one sense does allow the man to make his claim at the station.
If you were on the train, you would "feel" force as you go around corners. You would "feel" acceleration as you start and deceleration as you slow. You may also feel the friction of the wheels and the shimmy of the train over the less than perfect track. These are all secondary sensory clues; touch, that would tell you the train is moving, The man at the station will not feel anything, similar. He can only see the relative motion.
This second sense gives us an absolute hierarchy of motion; train is moving, that can better close the energy balance.The one sense default of astral science; sight only, has fooled astral physics, to position itself into a relative reference corner. The energy balance became too low from that relative reference corner and needed these two bandaids as news data appeared.
In the case of the man at the station, if I told him that the total kinetic of the system; man plus train, used 5000 liters of fuel, he would need to theorize some form of invisible energy or energy void, if he wishes to maintain his insistence of being the one moving. He did not use that fuel so it had to go somewhere else. The person on the train, who both saw and felt motion, does not have to do anything.
I have pointed this out in science and physics forums. There is no rebuttal, but also no change in the theory. There is too much invested to worry about the truth. But also, they do not know how to fix it based on the only having hone sense data that is almost entirely visual. They cannot touch galaxies or quasars. There is way to fix this.