Astronomy
RegiStax V3
Optimize the astronomical images you have
Stellarium
Look at the sky on your screen
Celestia
Explore the universe in 3D
Aciqra
A portable planetarium with interesting features
Asynx Planetarium
The sky on your hands
Celestia Portable
The famous virtual planetarium, now in a portable version
Daylight Chart
Hours of daylight for any city in the world
Distant Suns
Create your own astronomical screensaver
LcStars
Astronomical planetarium with 28,695 objects
Luna
Moon phase calendar
Monitor Lunar IP
Moon status in real time
OpenRocket
Design your own rocket
skyORB
Excellent space simulator and star finder
Solar Model 3D
3D modelling of the Solar System in real time
Solar System 3D Simulator
Analyze the trajectory of the planets with this simulator
Spaceflight Challenge
3D educational tool about the ISS and astronauts
StarStrider
Travel through space and discover all of its details
Stele
Excellent simulator of the Solar System in real time
Stellarium Portable
Portable version of the excellent planetarium for PCs
Virtual Moon Atlas
Explore and study the Moon's surface