Hubble Space Telescope image of spiral galaxy M101, the Pinwheel Galaxy, in Ursa Major (credit: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana), and STScI, Canada-France-Hawaii Telescope/ J.-C. Cuillandre/Coelum, G. Jacoby, B. Bohannan, M. Hanna/ NOAO/AURA/NSF)
NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana), and STScI
Credit for CFHT Image: Canada-France-Hawaii Telescope/ J.-C. Cuillandre/Coelum
Credit for NOAO Image: G. Jacoby, B. Bohannan, M. Hanna/ NOAO/AURA/NSF