NASA released striking Chandra X-ray Observatory imagery showing the Crab Nebula's central pulsar, the collapsed core of a star that exploded in 1054 AD, spinning 30 times per second and blasting out particle jets visible across the electromagnetic spectrum. The image became one of the most widely reproduced astronomical photographs, illustrating stellar death and its violent afterlife.
At the heart of the Crab Nebula sits the crushed remnant of a massive star that Chinese and Arab astronomers watched explode in the year 1054, bright enough to be seen in daylight for weeks. What remained was a neutron star barely 20 kilometers across but spinning an astonishing 30 times every second, its magnetic field so intense it flings particles outward at close to the speed of light.
The Chandra Observatory, operating from an orbit reaching a third of the way to the moon to escape atmospheric X-ray absorption, captured this pulsar mid-tantrum, showing rings of high-energy particles and jets shooting from its poles like a cosmic lighthouse gone berserk. The resulting composite image, combining X-ray, optical, and infrared data, showed structures resembling flame and smoke frozen in space.
Astronomers had studied the Crab pulsar for decades, but the 2006 release synthesized years of Chandra observations into a single image that made an abstract physics lesson, relativistic particle acceleration, viscerally beautiful. It became a staple of astronomy textbooks and a reminder that stellar death seeds the next generation of stars and planets.