Google Earth allows users to search for addresses for some countries, enter coordinates, or simply use the mouse to browse to a location.įor large parts of the surface of the Earth only 2D images are available, from almost vertical photography.
Maps showing a visual representation of Google Earth coverage Melbourne, Australia Las Vegas, Nevada and Cambridge, Cambridgeshire include examples of the highest resolution, at 15 cm (6 inches). The degree of resolution available is based somewhat on the points of interest and popularity, but most land (except for some islands) is covered in at least 15 meters of resolution. Google Earth displays satellite images of varying resolution of the Earth's surface, allowing users to see things like cities and houses looking perpendicularly down or at an oblique angle (see also bird's eye view).
As of October 2011, Google Earth has been downloaded more than a billion times. The release of Google Earth in June 2005 to the public caused a more than tenfold increase in media coverage on virtual globes between 20,driving public interest in geospatial technologies and applications. In addition to releasing an updated Keyhole based client, Google also added the imagery from the Earth database to their web-based mapping software, Google Maps. Google Earth is also available as a browser plugin which was released on May 28, 2008.It was also made available for mobile viewers on the iPhone OS on October 28, 2008, as a free download from the App Store, and is available to Android users as a free app in the Google Play store. The product, re-released as Google Earth in 2005, is available for use on personal computers running Windows 2000 and above, Mac OS X 10.3.9 and above, Linux kernel: 2.6 or later (released on June 12, 2006), and FreeBSD. The third original option, Google Earth Plus, has been discontinued. It was originally available with three different licenses, but has since been reduced to just two: Google Earth (a free version with limited function) and Google Earth Pro, which is now free (it previously cost $399 a year) and is intended for commercial use. It maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography and geographic information system (GIS) onto a 3D globe. Google Earth is a virtual globe, map and geographical information program that was originally called EarthViewer 3D created by Keyhole, Inc, a Central Intelligence Agency (CIA) funded company acquired by Google in 2004 (see In-Q-Tel).
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