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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 ...
earth4d
100 years ago: Edwin Hubble proved the Milky Way is not the only galaxy in the universe
In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...
Space on MSN21d
100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone
Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.
Stunning photo mosaic of neighbouring Andromeda Galaxy captures the glow of 200 million stars
To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...
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100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone
Curtis argued that the spiral nebulas were galaxies in their own right, but said that the Milky Way was only 10,000 light years across. Shapley argued the opposite. Hubble enters the fray Edwin ...