A few weeks ago we had a look at some calibration targets used by the classified Corona spy satellites. Today we are looking at a set of calibration targets and other interesting features at ...

With Christmas this weekend and Santa being tracked around the world, but the exact location of his base near the North Pole remaining secret, it is a good time to talk about why the poles are not ...

Thank you for GEB reader Jonah for being the first to let us know. Google has added yearly global mosaics using Landsat and Sentinel 2 data going back to 1985. Google has long had these mosaics on ...

Google has released a free new version of Google Earth on a totally different computing platform: Virtual Reality (VR). Google imaginatively calls it Google Earth VR. Specifically, for now, this ...

Last week we had a look at drawing contour lines using the Google Maps Elevation API. Because of restrictions on what you are allowed to do with Google’s elevation data, we chose not to create ...

Landsat 8 imagery vs Sentinel 2A imagery. Images courtesy of USGS/NASA Landsat and Copernicus Sentinel data 2016. To see the images in Google Earth download this KML file.

This is the fourth and final in a series of posts about the size of the data in Google Earth. We already looked at: How much data 3D imagery requires How much data different types of 2D imagery ...

Our KML map of 3D areas has been steadily growing in size as new areas are added. We have considered converting it to KMZ format, which is the compressed version of KML files. KMZ uses standard ...

We have been working on some code to determine whether or not a placemark lies inside or outside a polygon. We thought a nice use for that code would be to determine what country a placemark is in ...

We were recently asked by a GEB reader whether or not it is possible to add labels to paths and polygons. The ability to add labels to paths was added to KML with version 6.1 of Google Earth ...

We recently came across this article about an area near the Grand Canyon where you can see circular patches of bare ground in the imagery. The bare patches are believed to be caused by ant nests ...

In late 2014 we had a look at a map of the ocean floor published by the Scripps Institution of Oceanography, University of California, San Diego. Apparently that map was incorporated into the ...