Photos: The first Moon Walk, Buzz Aldrin: courtesy of NASA, taken by Neil A. Armstrong, Apollo 11; Earth forming: courtesy of JSC and NASA, Apollo 17; The Sun forming: courtesy of EIT Consortium/NSSDC and NASA, SOHO's EIT EIT Asteroids flying, Ida and it's moon Dactyl: courtesy of NSSDC and NASA; Galileo Sun's nuclear energy: courtesy of EIT Consortium/NSSDC and NASA, SOHO's EIT; Colliding galaxies: courtesy of The Hubble Heritage Team/STScI/AURA and NASA, Hubble Space Telescope Center, Debra Meloy Elmegreen, Bruce C. Elmegreen, Michele Kaufman, Elias Brinks, Curt Struck, Magnus Thomasson, Maria Sundin, and Mario Klaric; Black Holes: Accretion Disk Binary System: STScI and NASA; The Center of Centaurus, E.J.
