Rare Supernova Observed Multiple Times May Aid Universe Expansion Rate Research

A superluminous supernova, dubbed 'SN Winny,' has been uniquely observed five separate times due to gravitational lensing. This extraordinary event, located 10 billion light-years away, presents an unprecedented opportunity to enhance the accuracy of measurements for the universe's expansion rate. Scientists hope this discovery will help resolve a significant cosmological puzzle regarding the precise speed of cosmic expansion.