Google Earth started development in 2001. Its initial release was on June 11, 2001.
This was used a secondary logo from 2015 to 2017.
This logo first appeared on the Android 5.0 Lollipop Google Earth app. It was used for all versions of Google Earth from 2015 to 2017, and a grayscale version is currently in use as the icon for Google Earth Pro.
This logo has been used for all versions of Google Earth except Pro since April 18th, 2017.