剧情简介：No modern astronomer made a more profound contribution to our understanding of the cosmos than did Edwin Hubble, who first conclusively demonstrated that the universe is expanding. Basing his theory on the observation of the change in distanct galaxies, called red shift, Hubble showed that this is a Doppler effect, or alteration in the wavelength of light, resulting from the r...(展开全部)
作者：Edwin Hubble
出版社：Yale University Press, New Haven & London
ISBN：9780300025002
