Supernovae are explosive death events of stars that can outshine the entire host galaxy and are visible across the universe. The explosion propels stellar material outward, which interacts with matter previously lost by the precursor star. Consequently, it traces the star's mass loss history, which was impossible to track within a human lifetime. This project aims to simulate supernova explosions colliding with surrounding matter using high-performance computing with the world-leading LUMI supercomputer, coupled with real observational data acquired from world-class astronomical observatories. By simulating the gas dynamics and emitted radiation and comparing them with observational data, the composition and structure of the surrounding material will be derived. This will unveil the final stages of the star's evolution immediately before its demise, a phase that remains unknown in stellar evolution.

2026

2028