Witnessing the Birth of an Incomprehensibly Strong Magnet in the Cosmos – Our Theories Fall Short

In late 2018, a magnetar known as XTE J1810-197, which had been silent for a decade, suddenly became active again. This city-sized star, born from a supernova explosion, released a tremendous amount of energy in the form of gamma rays, X-rays, and radio waves as its tangled magnetic field snapped and untwisted.…

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