galaxies
Guys: Print those two worksheets Part 1. classifying galaxies https://docs.google.com/open?id=0B_aUC78Qoyomci1lTlY2aWIzTkk Part 2. Glimpse to distant galaxies https://docs.google.com/file/d/0B_aUC78QoyomMnVWdDVDamdlN28/edit?usp=sharing