What is a supernova What is a neutron star?

What is a supernova What is a neutron star?
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The name is a bit of a give away really. A neutron star is a lump of matter composed entirely of neutrons, thus containing a large mass (typically between 1.4 and 3.2 solar masses in a very small volume. This matter is so dense that typically one teaspoon of neutron star (5 ml) would have a mass of about 5 and a half billion tons.
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