Also: Apollo photos to celebrate the 45th anniversary of humanity's first landing on another world.
Public domain, courtesy of NASA unless otherwise noted.
For some lovely and colorful copyrighted images, check out the astrophotography website of Hungarian astronomer, Ivan Eder. Eder has produced some amazing shots of our solar system's various celestial bodies, as well as photos of the deep sky including nebula and galaxies. Very much worth your time.