View a dark energy inside Solar system on your dektop with this screensaver! This screensaver shows all planets of our solar system, uncluding Saturn's rings It makes you able to know about dark matter and dark energy in our planet system.
License: Freeware
OS Support: WinXP, WinNT 4.x, WinME, Win2003, Win2000, Win Vista, Win98, Win95

This utility can convert a gregorian date into julian day format and vice versa.
License: Freeware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000,Windows2003,

Similar to 3D games VRPresents Software on Mars Exploration Rover Spirit Mission.
License: Demo
OS Support: Win95,Win98,WinME,WinNT 4.x,WinXP,Windows2000,Windows2003,Win Vista

Visit stars & planets, see galaxies & nebulas, try this 3D software planetarium!.
License: Shareware
OS Support: Win7 x32,Win7 x64,WinServer,WinXP,Win Vista

Software to find dates and times of lunar and solar eclipses and lunar phases.
License: Shareware
OS Support: Win2000,Win7 x32,Win7 x64,Win98,WinXP,Win Vista

The Sun & Moon Calculator displays solar and lunar data throughout the day.
License: Shareware
OS Support: Win2000,Win98,WinOther,WinServer,WinXP,Other,Win Vista

CyberSky is an accurate, yet easy-to-use planetarium program.
License: Shareware
OS Support: Win98,WinME,Windows2000,WinXP,Windows2003,Win Vista

Moon Phase Calculator is simple and easy to use tool.
License: Shareware
OS Support: Win98,WinME,Windows2000,WinXP,

Combine multiple sights on different tracks Data available for 9999BC to 9999AD including a Star Atlas, twilights and eclipses.
License: Shareware
OS Support: WinXP, Win2000, Win Vista, Windows 7

Complete 2010 Nautical Almanac in pdf format.
License: Freeware
OS Support: BlackBerry,Handheld/Mobile Other,Linux,Mac OS X,Pocket PC,Win2000,Win7 x32,Win7 x64,Win98,WinOther,WinXP,Other,Win Vista