Crab Nebula

When a supernova explodes, its outer layers blow off, leaving a small, dense core that continues to collapse, jamming protons and electrons together—and creating a neutron star. Its matter is packed so tightly that a sugar-cube-sized amount of material would weigh more than 1 billion tons. The Crab Nebula is the result of a bright supernova explosion. At its center is a super-dense neutron star, rotating once every 33 milliseconds, shooting out rotating lighthouse-like beams of radio waves and light…

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