An extremely dense but already dead star is only about 240 years old. She turned out to be the youngest object of her kind.
A set of space telescopes operated by NASA and the European Space Agency, discovered the youngest known to date magnetar. this extreme cosmic baby is essentially a dead star, but it can help astronomers understand how such objects appear and develop.
In a study published in the Astrophysical Journal Letters, the authors described Swift J1818.0-1607 as the youngest of all the magnetars discovered, it was found due to a splash of a powerful x-ray wave. This is a rare type of neutron star with extreme magnetic fields. In them, a huge amount of mass is “packed” into a tiny space that generates a huge amount of strange physical phenomena. Their magnetic fields can be 1000 times stronger than ordinary neutron stars.