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Nebulae used to be thought of as glowing galactic clouds, but now scientists know they are unique entities. Learn more about how nebulae work.

The results of measurements of the Hubble constant H0, which characterizes the expansion rate of the universe, show that the values of H0 vary significantly depending on Methodology. The disagreement in the values of H0 obtained by the various teams far exceeds the standard uncertainties provided with the values. This discrepancy is called the Hubble Tension. In this paper, we discuss Macrostructures of the World (Superclusters and Galaxies); explain their Origin and Evolution in frames of the developed Hypersphere World-Universe Model (WUM), which is an alternative to the prevailing Big Bang ...