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One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...
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 ...
Compass and Scale Image of M31 PHAT+PHAST Mosaic The Andromeda galaxy, a spiral galaxy, spreads across the width. It is tilted nearly edge-on to our line of sight so that it appears as an extreme ...
The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...
The camera pans along the Andromeda Galaxy's vast disk which is over 200,000 light-years across ... Images were obtained at near-ultraviolet, visible, and near-infrared wavelengths using the Advanced ...
Despite its nearness, photographing the entire Andromeda Galaxy ... light-years distant, which is nothing in cosmological terms. Under the right conditions, you can even see Andromeda (also known ...
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