Recent research has raised significant questions about the long-held assumption in cosmology that the universe behaves uniformly on large scales. Analyzing data from supernovae and galaxy surveys, scientists found tentative evidence indicating that the universe may not be as evenly structured as previously thought. This challenges the Friedmann-Lemaître-Robertson-Walker (FLRW) model, which serves as the mathematical foundation for the standard model of cosmology. The studies, published on the preprint server arXiv, suggest that cosmic structures such as galaxy clusters and voids could influence the expansion of space itself. Researchers utilized data from the Pantheon+ supernova catalogue and the Dark Energy Spectroscopic Instrument (DESI) to create a 3D map of the universe and employed advanced mathematical techniques to analyze cosmic expansion history. The results showed deviations from FLRW predictions with statistical significance between 2 and 4 sigma, though not yet reaching the 5-sigma threshold typically required for scientific validation. If confirmed, these findings could necessitate a reevaluation of existing theories regarding dark energy and the universe's overall structure.