Planets & Moons

Jupiter, with its for primary satellites, the Gallilean Moons Io, Europa, Ganymede, and Callisto.

Jupiter, with its for primary satellites, the Gallilean Moons Io, Europa, Ganymede, and Callisto.

 

Comets

Comet Lovejoy, or C/2013 R1

Comet Lovejoy, or C/2013 R1