Stellarium 0.21.2
Shows what you're looking at when viewing the stars
Publisher: Stellarium Rating: 7.2 out of 10 (615 votes)
PyMOL 1.1
Create high-quality 3D images of small molecules and other biological creations
Publisher: DeLano Scientific LLC Rating: 6.8 out of 10 (10 votes)
3D World Map 2.1
See many cities and countries worldwide online
Publisher: Longgame Rating: 6.7 out of 10 (199 votes)
NASA World Wind 2.2.0
Zoom in to any place on Earth via NASA's satellites
Publisher: NASA Rating: 7.5 out of 10 (176 votes)
SkyMap Pro 7
View maps of the sky to learn about constellations, stars and other details
Publisher: skymap Rating: 7.6 out of 10 (16 votes)
Solar System 3D Simulator 3.0
App designed to help learn more about the solar system
Publisher: Sciencefair-projects Rating: 7.2 out of 10 (125 votes)
Moonphase 3.4
Free software that tracks the phases of the moon
Publisher: Tingan Rating: 6.7 out of 10 (51 votes)
WorldWide Telescope Beta
A scientific sandbox that allows users to explore the night sky and celestial objects
Publisher: Worldwidetelescope Rating: 6.7 out of 10 (67 votes)
Celestia 1.6.1
3D space simulation in real time with massive star database
Publisher: Shatters Rating: 7.5 out of 10 (209 votes)
Satscape 2.02
Know where satellites are at any given time for free
Publisher: Satscape Rating: 7.3 out of 10 (18 votes)