Space Icons
collection of ready-made space, science and astronomy icons for software and web
EarthView
earthview displays high detail views of the earth at day and night.
EarthTime
earthtime displays the local time and date of any place in the world.
Earth 3D Space Travel for Mac OS X
immerse yourself to the earth orbit and watch realistic space scenes.
Arm Map Explorer
It lets you locate and view any object on the planet using interactive maps