"Unveiling Supernova Secrets: Ancient Meteorite Holds Stardust Clues"

Scientists have discovered a presolar grain of olivine in an ancient meteorite from Antarctica, revealing an extremely high isotopic ratio of magnesium-25, indicating it was formed in a hydrogen-burning supernova, a type of star recently discovered. This finding provides valuable insights into different stellar environments in the galaxy and the history of our Solar System. The grain was analyzed using atom probe tomography, offering unprecedented detail and shedding light on the formation of these rare presolar grains.