Cosmological Observations Reveal Troubling Inconsistency

A new analysis of the distribution of matter in the Universe, conducted by the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) weak-lensing survey, has found a discrepancy in the clumpiness of dark matter in the late and early Universe. This inconsistency, which has been observed in previous surveys as well, suggests a fundamental error in the standard cosmological model. The findings indicate a possible failure of the ΛCDM model and may require the development of new cosmological models that can explain both early and later Universe data. Upcoming observational capabilities, such as the Euclid telescope and the Vera C. Rubin Observatory, will provide enhanced capabilities for further measurements and expand our understanding of the Universe.