Question

Who suggested that galaxies are moving farther away?

Answer 1

Edwin Hubble found from that the spectra of galaxies was redshifted,which suggested that galaxies were moving far away from earth.Hubble also showed that the further away the galaxy,the greater the red shift...
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Answer 2

Edwin Hubble
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Edwin Hubble suggested that galaxies are moving farther away
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1) He was an Astronomer 

2) He suggested this theory in 1924 

3) He was an American born scientist