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OpenStudy (peterg2001):
help please will medal Edwin Hubble was the first to suggest that the universe is expanding. We can verify his theory by observing the _______ of distant stars and galaxies.
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OpenStudy (anonymous):
Light?
OpenStudy (peterg2001):
nope i dont have that
OpenStudy (anonymous):
what do you have?
OpenStudy (anonymous):
@peterg2001 what answers do you have?
OpenStudy (peterg2001):
supernova blueshift redshift acceleration
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OpenStudy (anonymous):
Redshift: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.
OpenStudy (anonymous):
Redshift is the best answer
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