USGS Science In Action
(ZIP file download containing a .scr file)
How to install:
After downloading and open the ZIP file, copy the .scr file into the C:\Windows\system32\ directory on your Windows PC. Then go to the Windows Start menu > Control Panel > Display. Select the Screensaver tab at the top. In the drop down menu, select the USGS Science in Action screensaver and press the OK button at the bottom.
Wallpapers of each image are available in 1920x1200, 1024x768, 1024x640, iPhone, and BlackBerry Storm.