『A Rare Supernova Could Solve the Hubble Tension』のカバーアート

A Rare Supernova Could Solve the Hubble Tension

A Rare Supernova Could Solve the Hubble Tension

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概要

Astronomers have discovered an exceptionally rare superluminous supernova, SN Winny, appearing as five separate images due to gravitational lensing. As its light bends around two foreground galaxies, it reaches Earth at different times — creating measurable delays.

These time shifts offer a direct way to calculate the Hubble constant, providing an independent test in the ongoing Hubble tension debate over the universe’s expansion rate. With global telescopes tracking this event, SN Winny may become a crucial tool for refining our understanding of cosmic evolution.

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