We already wrote about a wallpaper application for Linux which displays the current weather, moon phases and time of day based on your current location, in real time. This time, I'm going to tell you about a script created by Claudio Novais @ Ubuntued which displays a picture of the Earth, in real time. The script needs a permanent internet connections and uses just ~400kb of memory so don't worry about it eating system resources. Also, please note the the script tries to update every hour but if it fails, it tries to get the image from 5 to 5 seconds, for 5 minutes and if it still fails, it tries again in an hour. That's especially useful for when running the script at system start-up, because it takes some time until the internet connection is set up, or for when the internet connection goes down, etc.