A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his colleagues on his behalf reported that the Andromeda nebula, also called M31, was nearly a million light years away—too remote to be a part of the Milky Way. A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his colleagues on his behalf reported that the Andromeda nebula, also called M31, was nearly a million light years away—too remote to be a part of the Milky Way. Astronomy Phys.org – latest science and technology news stories
One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy’s ‘Great Debate’
