Dark Matter Doesn't Exist: Cosmology's collective delusion

Dark Matter Doesn't Exist: Cosmology's collective delusion

Pavel Kroupa

The current cosmological model only works by postulating the existence of dark matter – a substance that has never been detected, but that is supposed to constitute approximately 25% of all the universe. But a simple test suggests that dark matter does not in fact exist. If it did, we would expect lighter galaxies orbiting heavier ones to be slowed down by dark matter particles, but we detect no such slow-down. A host of other observational tests support the conclusion: dark matter is not there. The implications of this are nothing short of a revision of Einstein’s theory of gravitation. Why the scientific community is in denial about the falsification of the dark matter model is a question that requires both a sociological and philosophical explanation, argues Pavel Kroupa.   

With my collaborators and students, we have applied a number of observed galaxy systems to the calculations of Chandrasekhar dynamical friction we would expect to see if dark matter existed, and in all and every case it turns out that the slow-down is not in the data. We have studied the motions of the satellite galaxies around our own Milky Way at distances of a hundred thousand light years, the motions of galaxies a few million light years away relative to each other, and we also checked how quickly the bars of spiral galaxies rotate, and none of these systems show evidence for dark matter particles. The galaxies behave as if they were naked, i.e., as if they did not possess the huge and massive haloes of dark matter particles which the theory predicts to be there. Rather than observing the slow down of galaxies through Chandrasekhar dynamical friction, we observed a speed-up as the galaxies fall towards each other. This is the same as two stars that fall towards each other in a star cluster. They get faster until they pass each other and then they recede again from each other.

We need to scientifically understand why the dark-matter based model, being the most falsified physical theory in the history of humankind, continues to be religiously believed to be true by the vast majority of the modern, highly-educated scientists. This is a problem for the sociological and philosophical sciences and suggests a breakdown of the scientific method

If this is true it would be very interesting...will see what the counterpoints are...

Dark Matter Doesn't Exist: Cosmology's collective delusion



If this is true it would be very interesting...will see what the counterpoints are...

It is interesting. You are right that counter-arguments need to be considered.


One other part of the conclusions in that article also seems relevant,

(c) What role does the modern fixation on prize-money, awards and rewards play in the unparalleled stagnation of physics? Does the modern homo-cosmologicus only want prizes and awards, rather than to advance our understanding of the physical cosmos?

"the unparalleled stagnation of physics" is a point of view, an opinion but maybe it also points to something more. Rather like the time towards the end of the 19th century when it was considered that science had pretty much completely understood the universe and not much was left to do beyond some "tidying up".

The 20th century introduced rapid changes in physics. I wonder whether (maybe not soon) there will be another period of rapid changes like that.

Counterpoint:

The case for dark matter has strengthened

Key Takeaways

• Though it makes up about 26% of the Universe, we cannot see dark matter. But we know it's there because we can see its effects.
  
• Not all astrophysicists agree. Some argue that dark matter doesn't exist; instead, our understanding of the laws of physics needs to be modified.
  
• Evidence that once favored the "modified physics" hypothesis is now seen to be more consistent with the dark matter explanation.