A new study claims that dark matter does not exist and never has existed, turning the standard cosmological model on its head sciencealert.com.
Last year, Canadian theoretical physicist Rajendra Gupta proposed a theory that our universe is actually 26.7 billion years old, not 13.8 billion years old, as is commonly believed.
The physicist’s new research, published in The Astrophysical Journal, confirms past results, but now the scientist says that dark matter does not really exist and has never existed.
A new theory from a Canadian physicist suggests that one of the important components of our universe is in fact an unnecessary component and may not exist at all. This theory challenges the current understanding of the universe and questions the reliability of the Standard Model of cosmology.
A Canadian physicist says the results of a new study confirm that the universe is actually twice older, meaning it is not 13.8 billion years old, but 26.7 billion years old. He also says that the universe does not need dark matter to exist.
We remind you that according to the standard cosmological model, dark matter is a substance that does not interact with light, but is essential for the evolution of the universe. Many observations indicate that dark matter exists. According to Gupta, his results indicate otherwise, but are consistent with observations from space.
One of the problems in astronomy is that scientists see very distant galaxies in the early universe that appear quite mature and very massive for such an early period in cosmic history. This means that the standard model of cosmology may not be correct, or that the universe may actually have existed for much longer than is commonly believed.
While current cosmological models assume that certain forces governing the interactions between particles remain constant over time, Gupta believes they change and this affects the behavior of light, which loses energy as it travels large distances. Scientists believe that the expansion of the universe is not due to dark energy, but because the driving forces of the universe weaken over time.
Gupta bases his conclusions that the universe does not need dark matter to exist on a model that combines two theories of the cosmos: covariance constants and aging light.
The first concerns the physical principles of how much force is needed to force particles to interact and how these forces weaken over time. The second concerns the nature of light and how it changes with distance as it travels through space. According to the theory, this aging light could explain redshift, or the reddening of light from very distant objects, as light loses energy over time.
It has long been thought that the redshift is caused by dark matter and dark energy, that is, the expansion of space extends the wavelengths of light into the reddest part of the spectrum.
According to the Canadian physicist’s theory, as the universe expands, the redshift is caused by a weaker constant force, while a weaker force causes the universe to expand faster.
At the same time, the physicist believes that his theory will work if we abandon the idea of ​​​​the existence of dark matter in the universe. Based on this, the physicist suggests that the standard model of cosmology is imperfect and that a new model is needed. But this theory still needs more reliable confirmation with the help of new observations of space.