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Space Station Glossary Q
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Quark:
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A basic structure block of protons, neutrons, and other elementary particles.
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Quasar:
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The brightest type of lively galactic nucleus, believed to be powered by a super massive black hole. The word “quasar” is derivative from quasi-stellar radio source, since this type of object was first recognized as a kind of radio source. Quasars also are known as quasi-stellar objects (QSOs). Thousands of quasars have been experiential, all at great distances from our galaxy.
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