Vocab words
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| Fusion | A creation of energy by joining the nuclei of two hydrogen atoms to form helium
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| Solar wind | A stream of electrically charged particles produced by the sun's crona
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| Main sequence | The stage in which stars produce energy through the fusion of hydrogen into helium
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| Convection | The transfer of heat through a gas or liquid by the circulation currents from one region to another
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| Light year | The distance light travels in one year
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| Neutron star | May occur when a super giant collapses to a very dense core
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| Corona | The outer layer of the sun's atmosphere
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| Parallax | An apparent shift in the position of an object when viewed from different locations
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| Black hole | An object whose gravity is so strong that nothing can escape, not even light
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| Sun spot | A cooler darker spot appearing periodically on the sun's photosphere
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| Nebula | A large cloud of dust and gas that can break apart into smaller pieces and form stars
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| Doppler effect | An observed change in the frequency of a wave when a source or observer is moving
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