![]() Now scientists can estimate the glacier’s surface change using Hexagon images. Unlike Alaskan glaciers, which recede laterally as they melt, Himalayan glaciers grow shallower. Glacial melt in the Himalayas is notoriously difficult to track. One study used the digital elevations to measure the thickness of 650 glaciers over 40 years. This digitized elevation model of the Himalayas came from Hexagon images. Get the most fascinating science news stories of the week in your inbox every Friday. Scientists have created three-dimensional landscapes from overlapping Hexagon images and used them as historical data in their studies. Phil Pressel, who worked as an engineer for the company that designed Hexagon’s cameras, said the images were “much better than Google Earth.” The cameras captured objects as small as 0.6 meter wide and shot the scenery from an angle, instead of like other satellites that imaged the Earth directly from above. The declassified images are incredibly detailed. government declassified the images from Hexagon, and since then, scientists have mined the photos to reveal changes in the world around us. intelligence services, and some credit these services for helping the superpowers avoid engaging in direct conflict. Hexagon was just one in a line of covert Cold War missions managed by U.S. National Reconnaissance Office (NRO) to surveil the Soviet Union between 19. The load was one more delivery from KH-9 Hexagon, a spy satellite program launched by the U.S. The pilots must be careful, though: The capsule contains classified images destined for Washington, D.C.’s top brass. ![]() A United States Air Force C-130 cargo plane flies nearby, ready with a series of hooks and cables to catch the parachute in midair and hoist in its payload. The prison roof became much more clear in a 2013 Google Earth update.Bringing Satellite Observations Down to EarthĪ parachute descends toward Earth, carrying over 200 kilograms of black-and-white film. According to Time magazine, Kaplan's wife had visited the prison a day before the escape with a male companion who seemed to be scoping out the prison yard. He made it to California and was never recaptured, no satellite imagery required. New York businessman Joel David Kaplan, who was serving a sentence for killing his business partner while in Mexico, fled the prison by helicopter. The first, made famous by the 1975 movie "Breakout," took place at the Santa Martha Acatitla prison in Mexico. ![]() However, helicopter escapes have happened. More recently, in the summer of 2017, the prison was hit with a series of brawls involving homemade weapons, according to USA Today.Īround 2006, the images of Elmira on Google Earth were very low-resolution, reportedly over concerns that satellite imagery would be used to stage helicopter escapes from the prison - though it may just have been poor-quality satellite imagery, because the surrounding neighborhoods weren't particularly sharp, either. In 2003, two inmates, Timothy Morgan and Timothy Vail, made paper-mache models of themselves using their own hair, left them snuggled in their beds, and escaped through a hole they'd made with a sledgehammer through the ceiling of their cell. The Elmira Correctional Facility in Elmira, New York, is a maximum-security prison with a wild history. The Elmira Correctional Facility, New York Until 2013, the palace, as seen on Google Earth, looked like something out of an old Atari game. The office building of the country's kind was once painstakingly blurred pixel-by-pixel with a much more delicate hand than usually used on the country's satellite imagery. Most of the censored areas in the Netherlands used the large, pixelated mask still seen in Noordwijk aan Zee to obscure sensitive sites, but Noordeinde Palace in The Hague got a more personal touch. (There are some spots, like a blob in Noordwijk aan Zee, where new satellite imagery has yet to become available since the law change.) According to CNN, Dutch law changed in 2013 to lift this censorship, and the Netherlands have become considerably clearer since. On Google Earth, the country was dotted with pixelated splotches covering military bases, government buildings and more. The Dutch are rather famous in satellite-imagery-loving circles for their enthusiastic pixelation.
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