Written by Kirk Johnson. This is not included with the XScreenSaver
package, but if you don't have it already, you can find it at
<http://www.cs.colorado.edu/~tuna/xearth/>.
+
+There is also a similar (but more recent) program called xplanet
+to be found at <http://xplanet.sourceforge.net/>.
</_description>
</screensaver>