Astronomers have obtained the first visual evidence confirming that some white dwarf stars undergo a double-detonation supernova, exploding twice before their demise. Using the European Southern Observatory's Very Large Telescope (VLT) located in Chile, researchers captured images of the supernova remnant SNR 0509-67.5, which displays two concentric rings indicative of two distinct explosions. The initial detonation is believed to result from helium buildup on the star's surface, followed by a secondary explosion when the white dwarf reaches critical mass. This discovery provides direct photographic proof of a long-debated theory about Type Ia supernovae, phenomena crucial for understanding cosmic processes such as the distribution of elements like iron. The findings, published in Nature Astronomy, offer new insights into stellar evolution and may have implications for cosmology.