New Supervoid Insights Challenge Our Understanding of the Universe's Expansion
Researchers propose that a local supervoid, a region of below-average density, could help resolve the Hubble tension, the discrepancy in measurements of the universe's expansion rate. This void, known as the KBC void, may create additional redshifts due to peculiar velocities, affecting local Hubble constant measurements. The study suggests that this void could explain observed deviations in cosmic expansion and bulk flow, challenging the standard Lambda-Cold Dark Matter model.