Astronomers have observed a supernova approximately 2.2 billion light-years from Earth that lost its outer hydrogen and helium layers before exploding. This rare event allowed scientists to directly observe the inner layers of the star at the moment of the supernova, providing unprecedented insight into the star's deep interior. The star's shedding of its outer layers revealed structures that had previously only been theorized. This observation, described as a new kind of supernova, was captured by the Hubble Space Telescope and is considered a first-of-its-kind finding. The discovery confirms existing theories about massive stars' internal anatomy while opening new questions about stellar explosions.