An article published in the journal “Science” describes the study of the first gamma-ray emitting pulsar discovered outside the Milky Way. Cataloged as PSR J0540-6919, it’s part of an area full of stars known as the Tarantula Nebula or 30 Doradus within the Large Magellanic Cloud, a small satellite galaxy of the Milky Way. The gamma rays emission from this pulsar was identified by the LAT (Large Area Telescope), one of the instruments of the Fermi gamma-ray space telescope.