More to explore:
1900 saturn rings chart original antique celestial astronomy print. $25.50, via Etsy.
Titan in front of Saturn
The Witch Head is a favorite around Halloween and is located in the constellation Orion, near the bright star Rigel.
Crater and Basaltic Rock on Mars
by hiro via flickr.
Comet Lovejoy as observed from the ISS by André Kuipers.