Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. The Crab Nebula is so energetic that it glows in every kind of light known. Shown above are images of the Crab Nebula from visible light to the X-ray band. In the center of the Crab Nebula lies the powerful Crab pulsar - a spinning neutron star with mass comparable to our Sun but with the diameter of only a small town . The pulsar expels particles and radiation in a beam that sweeps past the Earth 30 times a second.
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