A free app for Android, by not.a.bug.
ISS & Space Live Screensavers is a free and entertaining Android app. This live screensaver uses real-time streaming to bring you a view of the International Space Station (ISS) as it orbits the Earth. You can choose between a lot of different content such as:
Define a fallback screensaver when ISS is not visible!
On mobile phones:
The ISS & Space Live Screensaver app will automatically start when you put your device in the dock or charge it.
To use & set up the app on Android 4.2+, make sure Daydream is enabled in the Android display settings! Keep in mind that if you have the "Keep display awake" option turned on in the Android developer settings, the system won't start the daydream. Make sure to turn off the "keep display on while eye contact is detected" option in the display settings for Samsung devices.