Sonoma State University
Sonoma State University: 1938 Bruce Medalist: Edwin Hubble
Site honoring the winners of the Catherine Wolf Bruce medal for lifetime contributions to astronomy. Edwin Hubble, the award winner in 1938, is highlighted in a biography.
NASA
Nasa: Astronomy Picture of the Day: Edwin Hubble 1889 1953
Part of the NASA website, this is a reprint of an article in the Journal of the Royal Astronomical Society of Canada about Edwin Hubble's life and accomplishments, stressing his role in the development of modern astronomy.