Image credits
Image Credits:

Photos: Spiral galaxy (M100, A Grand Design): courtesy of APOD and NASA; Astronomy: courtesy of the Hubble Heritage Team (STScI/AURA); Dr. Raghvendra Sahai (JPL); Dr. Arsen R. Hajian (USNO) and NASA; Our Solar System: courtesy of Bill Arnett, Nine Planets; Newborn stars in the Orion Nebula: courtesy of N.A. Sharp (REU Program) /AURA/NOAO/NSF; Sun: courtesy of EIT Consortium/NSSDC and NASA, SOHO; A large cluster of stars: courtesy of AURA/ESA/Goddard Space Flight Center, STScI and NASA, Hubble Space Telecope; Hubble Space Telescope: courtesy of STScI/AURA and NASA; Hubble Telescope view of deep space: courtesy of R. Williams, the HDF team (STScI) and NASA; 13,000,000,000 years old: courtesy of Chris Van Dunsen, AMNH and the National Center for Supercomputing Applications, 1999; Eagle Nubula (a star nursery): courtesy of J. Hester and P. Scowen (Az. State University) and NASA; Colliding Galaxies: courtesy of B. Whitmore (STScI, F. Schweizer (DTM) and NASA; Illustrations: Daryl Collins