An analysis of the largest star map with nearly six million galaxies and quasars showed that even at this scale, gravity behaves according to the predictions of Albert Einstein and general relativity. The results of the study confirm the accuracy of the main cosmological theory and weaken the position of other hypotheses such as MOND.
“General relativity has been tested in detail at the scale of the solar system, but we need to test it at a much larger scale,” said Pauline Zarrouk of France’s National Center for Scientific Research, one of the study’s leaders. “Studying the rate of galaxy formation allows us to test our theories directly and, so far, they are consistent with the predictions of general relativity on a cosmological scale. “
The behavior of gravity over great distances has long been a topic of debate among cosmologists. The main theory – the Lambda-CDM model, built on the general theory of relativity – offers the most complete picture of various astronomical phenomena. However, doubts about some components of the model – especially dark matter and dark energy – and its inability to predict some observed phenomena have led to the emergence of other theories.
To study the behavior of gravity at a universal level, scientists turned to data collected in the first year of the spectrographic instrument DESI, which monitors the movement of galaxies. Their analysis showed that the structure of the Universe largely matches the predictions of general relativity.
It is too early to say what impact this study will have on cosmology, but DESI data for the next two years of observations will be released in the spring of 2025. And at the end of this five-year experiment, data at scientists about the motion of nearly 40 million galaxies and quasars, writing Life Science. They may find the answer to the question of which model of the Universe is still correct.
Last year, three papers were published in the Journal of the Royal Astronomical Society describing the largest recent cosmological survey. modeling and the first conclusions from it. The main one is that both neutrinos and ordinary matter are necessary for accurate predictions, but even the parallel use of 30 thousand processors involved in calculating the models did not help resolves the main contradictions in determining the cosmological parameters that determine the properties of the Universe.
How might the latest study on the structure of the universe influence our current understanding of dark energy and dark matter?
Great! Here are some open-ended questions for the two guests:
Guest 1:
– How significant is this latest study on the structure of the universe in relation to our understanding of gravity?
– What role does the Lambda-CDM model play in explaining the behavior of galaxies and quasars at a universal scale?
– How does this study challenges other hypotheses like MOND?
– Does this research provide any new insights into the mysteries of dark matter and dark energy?
– What are the potential implications of these findings on future space exploration and our understanding of the cosmos?
Guest 2:
– What challenges have scientists faced in trying to test general relativity at a larger scale?
– How does the DESI experiment measure the motion of galaxies and quasars?
– What is the importance of DESI data in validating or refuting models of the universe?
– Are there any limitations or biases that need to be considered when interpreting the results of this study?
- How do these findings relate to recent cosmological surveys and other models of the universe?
