Google Earth lets you fly anywhere on Earth to view satellite imagery, maps, terrain, and other features in a highly interactive visual environment. Members of the Goggle Earth Community have developed a variety of applications that can be shared in the form of Keyhole Markup Language (KML) files. Google Maps is a 2-D version of Google Earth that has been used to implemement Google Mars, an application showing craters, valleys, and other features on the Red Planet. Using a variety of data sources I have created a KML application for viewing the anomlies in the Cydonia region of Mars using Goggle Earth.
When you first start Goggle Earth on a Mac, you get a screen like this:
(The PC version is similar). Notice the “Places” window on the left. To run the Cydonia application, download the file geCydonia.kmz and place it on your desktop, or some other convienent place, and then drag it to Temporary Places in the Places window. The screen will change to this:
With the KML file loaded into Google Earth we can begin to view the data. (At this point make sure all of the items in the “Layers” window, which is below the Places window, are unchecked. These are terrestrial features that are “underneath” the Mars data.) Open the folder “Anomalies in Cydonia, Mars” and click on the text “Click here to begin.” The screen will change to this:
The yellow pushpins mark the location of the anomalies. Scrolling down reveals a number of folders containing various data sets. If you click on the box next to “Viking Images” it will overlay a number of images over the area that have been registered to the base map (below):
At this point open the Viking Images folder and uncheck all of the images except for 35A72. This was the original image showing the Face on Mars. Using the Navigation Controls on the right side of the screen, scroll and zoom to the image:
Unckeck 35A72 and check 70A13. This is the second image of the Face discovered by DiPietro and Molenaar. Now look for another folder containing a number of Mars Global Surveyor (MGS) images, and check image E0300824. This image views the Face from above at a resolution of about 3 meters per pixel – about 20 times better than Viking Orbiter.
Moving to the south, checking MGS image R0600469 overlays a high resolution view of the west side of the D&M Pyramid:
Turning off (unchecking) 70A13 and turning 35A72 back on, move to the north. Turn on MGS image SP125803, which is a long strip of imagery that runs from the Starfish Pyramid in the City:
to some unusual markings to the north:
There is quite a bit of content in this initial release (about 54 MBytes). Some of the layers may take a little while to download, depending on your Internet connection.
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