Edwin Hubble and the expanding universe | EarthSky
Are Hubble Images Real? Part II: A Brief History of Astrophotography – Illuminated Universe
A recharged debate over the speed of the expansion of the universe could lead to new physics | Science | AAAS
Edwin Hubble - Wikipedia
Hubble Telescope, named for Marshfield, Mo. astronomer, celebrates 30 years
Meet Edwin Hubble in a Hubble 25th Anniversary Video | NASA
Hubble's Famous M31 VAR! plate | Observatories
RetroScience: Astronomer Edwin Hubble Discovers Galaxies Beyond The Milky Way | NOVA | PBS
Edwin Hubble looking through the 100-inch Hooker telescope at Mount Wilson in Southern California, 1929 discovers the Universe is Expanding. Credit: Margaret Bourke-White/Time & Life Pictures/Getty Images. | sciencesprings
About the Hubble Space Telescope | NASA
Edwin Hubble and the Hubble Telescope Stock Photo - Alamy
About - The Hubble Story | NASA
Credit Controversy: Who Made Key Cosmos Discovery? | WAMU