Saturn in 2005 as seen by the Cassini probe:
The center of our galaxy, combining X-ray and radio emissions (you definitely want to explore the expanded, full-size image):
A team discovered a haul of 20 new moons orbiting the ringed planet, bringing its total to 82; Jupiter, by contrast, has 79 natural satellites.
The moons were discovered using the Subaru telescope on Maunakea, Hawaii. See the full story here.