Astronomers have been studying the Lighthouse pulsar, a dense and rapidly spinning core left behind after a massive star dies in a supernova. The Lighthouse pulsar, also known as PSR J1101-6101, is relatively young with a spin-down age of 63 kiloyears and is rotating 16 times a second. It is traveling through the Milky Way at a speed of 990 kilometers per second, creating a massive bow shock and two giant glowing X-ray structures. The Trail, a bright X-ray wake, extends for about one arcminute behind the pulsar's path and points back to its likely birthplace, the supernova remnant MSH 11-61A. The Filament, an offshoot of the Trail, extends orthogonally and is a rare structure. Researchers have been hoping to understand how these structures evolved, with a clear theory about their evolution having been present for decades.