Compared to Landsat, which has been beaming photos of our planet since 1972, Mountain View is a cartographic newb. But Google Earth drove geospatial interest into the stratosphere when it launched in 2005 and, with a billion downloads and counting, the company is well placed to celebrate 40 years of Landsat imagery. To do that, it has collaborated with the US Geological Survey and Carnegie Mellon to create a collection of timelapse videos ranging from seasonal snowcover changes across North America to Amazon deforestation. Though the search giant is gradually shifting from relatively low-res 100 feet per pixel Landsat imagery to 8 feet SPOTImage maps, its Google Earth Engine was used to process the vast archive and make it available to the public. To watch a video of the history of the grand dame of satellite imagery and its liaison with Google, head after the break -- or check the source for all the timelapse goodness.