[PAR] [TLE] Edwin Hubble [SEP] Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer.  He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time. [PAR] [TLE] Hubble sequence [SEP] The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926.  It is often known colloquially as the Hubble tuning fork diagram because of the shape in which it is traditionally represented.
[PAR] [TLE] Edwin Hubble [ SEP ] Edwin Powell Hubble ( November 20 , 1889 – September 28 , 1953 ) was an American astronomer . He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time . [PAR] [TLE] Hubble sequence [ SEP ] The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926 . It is often known colloquially as the Hubble tuning fork diagram because of the shape in which it is traditionally represented .
Who is regarded as one of the most important astronomers of all time, and invented a morphological classification scheme for galaxies?
Who is regarded as one of the most important astronomers of all time , and invented a morphological classification scheme for galaxies ?
Edwin Hubble
Edwin Hubble