Space Station >> Space Station Glossary
Space Station Glossary N
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National Aeronautics and Space Administration (NASA):
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A Federal agency formed on July 29, 1958 after President Dwight Eisenhower signed the National Aeronautics and Space Act of 1958. NASA coordinates space looking at efforts as well as customary aeronautical research functions.
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Neptune:
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The eighth planet and the mass distant giant gaseous planet in our solar system. The planet is 30 times the Earth’s reserve from the Sun, and every orbit takes 165 Earth years. Neptune is the fourth main planet and has at least eight moons, the biggest of which is Triton.
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Neutron:
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A neutral (no electric charge) elementary atom having slightly more accumulation than a proton and residing in the nucleus of all atoms extra than hydrogen.
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Neutron Star:
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Neutron stars are very dense: they are only 10 kilometers or so in size, but have the mass of an standard star (usually about 1.5 times more massive than our Sun). A neutron star that frequently emits pulses of radiation is known as a pulsar.
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Nova:
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A binary star system (consisting of a white dwarf and a companion star) that rapidly brightens, then gradually fades back to normal.
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