earth2d
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 ...
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 ...
One Large Milky Way Galaxy Or Many Galaxies? 100 Years Ago, A Young Edwin Hubble Settled Astronomy's 'Great Debate'
Astronomers now know that galaxies are isolated systems of stars, much smaller than the space between them. Hubble makes his ...
The Register Citizen13d
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Astronomers as far back as the mid-18th ... At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the new Hooker 100-inch telescope, at the time ...