The web-based version of Google Earth also includes Voyager, a feature that periodically adds in-program tours, often presented by scientists and documentarians. Other features allow users to view photos from various places uploaded to Panoramio, information provided by Wikipedia on some locations, and Street View imagery. A flight simulator game is also included. Additional globes for the Moon and Mars are available, as well as a tool for viewing the night sky. In addition to Earth navigation, Google Earth provides a series of other tools through the desktop application, including a measure distance tool. In 2019, Google revealed that Google Earth now covers more than 97 percent of the world, and has captured 10 million miles of Street View imagery. Google Earth is able to show various kinds of images overlaid on the surface of the earth and is also a Web Map Service client. Users may use the program to add their own data using Keyhole Markup Language and upload them through various sources, such as forums or blogs. The program can also be downloaded on a smartphone or tablet, using a touch screen or stylus to navigate. Users can explore the globe by entering addresses and coordinates, or by using a keyboard or mouse. The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Google Earth is a computer program that renders a 3D representation of Earth based primarily on satellite imagery. Linux ( Ubuntu 14/ Fedora 23-equivalent or later).Many Chinese imaging companies, for example, will not sell any satellite pictures of China, North Korea, Taiwan, or Tibet. ![]() These are far from comprehensive, and some images are withheld from public access for national security reasons, a process known as shutter control. While the entire surface of the planet gets photographed multiple times a day at low resolution, the sharpest images from the latest commercial satellites can still cost upwards of $3,000, according to a price list at Apollo Imaging, a satellite imagery aggregator. Since our providers often focus on cities and places that are more heavily populated, these regions tend to get updated imagery more frequently.” The satellite images on Google Maps cover only about one-fifth of Earth’s surface-but 98% of its population. High-resolution Planet images of parts of The Line do seem to be available for licensing, although none have surfaced publicly on Google Maps to date.Ī Google spokesperson told MIT Technology Review: “We are constantly updating satellite imagery as it becomes available from our imagery providers. We tend to concentrate first on those areas that exhibit the most change (e.g., cities, etc.) but will fill in those other areas of the globe as well.” ![]() Stephen Wood, senior director of Maxar’s news bureau, told MIT Technology Review: “We do not have any recent high-resolution imagery that has been collected over these areas.” He wrote that the company primarily focuses on its customers’ areas of interest but “when we have available imaging time, we will collect other areas as part of our overall mission to continually update the entire globe with high-resolution imagery. “My immediate reaction is that no one bothered with high resolution because it’s in the middle of a desert and high-resolution imagery is incredibly expensive to own and distribute.” “I’ve not heard of any commercial company trying to restrict things,” says Doug Specht, a geography lecturer at the University of Westminster in London. “Probably the simplest solution is that a money interest is purchasing those images at the highest level, where they maintain an exclusive right to them.” “If there’s no Maxar images acquired over an area that is experiencing rapid economic investment, something fishy is going on,” Van Den Hoek says. One of the main commercial uses for satellite imagery is to help companies understand how their rivals or entire countries are faring in the global marketplace-to see, for example, “how many cranes are active on the Manhattan skyline right now, or oil tankers are in port,” says Jamon Van Den Hoek, a geography professor and director of the Conflict Ecology Lab at Oregon State University.
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