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Science Around Cincy - Expansion of the Universe
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galaxy
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A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
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Terms in this set (9)
galaxy
A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
Doppler effect
An observed change in the frequency of a wave when the source or observer is moving
red shift
A shift toward longer wavelengths of the spectral lines emitted by a celestial object that is caused by the object moving away from the earth.
Big Bang Theory
Cosmological model that explains the sudden development of the universe through expansion from a hot, dense state.
gravitational lensing
The magnification or distortion of an image caused by light bending through a gravitational field,
