Night Lights, Screen Saver (Free Download)

Night Lights is a Windows Screen Saver that displays a rotating image of the Earth showing night time urban illumination (city lights). This image of Earth’s city lights was created with data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth’s surface.

Windows Version: Click Here to Download

Mac OS X (10.3): Click Here to Download
The Mac OS X version is our first "public" Mac program, posted  6/18/2004. Please report any problems along with your OS version and 3D accelerator information directly to rwright@starstonesoftware.com.

Universal Binary Now Available (OS X 10.4.5): Click Here to Download

The Fourth Day™ (Desktop/Shareware)
The Fourth Day™ is an astronomical clock for your Windows PC. Residing in your system tray, you can bring up an interactive 3D view of the earth, with correct shadow, moon, and sun positions. 3D gaming technology is used to create a stunning realistic 3D view of earth, that also displays sidereal time, julian day, times of sunrise and set, twilights, and more. Set The Fourth Day to create and update your wallpaper for a Windows desktop that shows a customized simulated view of the earth at regular intervals. Also shows the current phase of the moon, and an almanac of the nearest lunar phases. To top it all off, you can use The Fourth Day as a 3D Windows screen saver with a myriad of display and animation settings. Optionally supports 3D hardware accelerated graphics cards. Download and try it for FREE for 14 days!

Click Here To Download

All Starstone software optionally supports 3D hardware acceleration with OpenGL.