Edwin Powell Hubble (1899-1953) American astronomer who discovered 'red shift'. Hubble Constant for expansion of the universe. Hubble in the observatory. Courtesy Astronomical Society of the Pacific.
Edwin Powell Hubble (1899-1953) American astronomer who discovered 'red shift'. Hubble Constant for expansion of the universe. Hubble in the observatory. Courtesy Astronomical Society of the Pacific
Credit:
Album / Universal Images Group / Universal History Archive