<text>  They say a picture is worth a thousand words, but this one will be worth a thousand years. Jonathon Keats, a conceptual artist and journalist, plans to capture the worlds longest photo exposure, PetaPixel reports. A camera filled with oil paint instead of photographic film will capture the 1,000-year-long exposure of Tempe, Arizona. Keats calls this and similar creations deep time cameras. Exposure: Jonathon Keats photographed, a conceptual artist and journalist, plans to capture the worlds longest photo exposure, a 1,000-year-long exposure of Tempe, Arizona . The camera, with a 24-karat gold plate on its front, will be installed three feet above ground at the Arizona State University Art Museums sculpture garden trellis after it is unveiled Friday at the museum. The camera will be pointed at the citys skyline, capturing how civilization changes over the next 1,000 years. Over time, the color in the paint will fade where the light enters the camera the brightest, slowly -- very slowly -- creating an image of the Tempe skyline in red and white. The experiment will be finished in spring 3015 and the museum will hold a month-long exhibit when the project is complete -- if everything goes according to plan in the next 1,000 years, of course, Slate reports. The first people to see this picture will be children who havent yet been conceived, Keats told PetaPixel. Theyre impacted by every choice we make, but theyre powerless. If they cant influence our decisions, at least they can bear witness. Camera: The camera, with a 24-karat gold plate on its front, will be installed three feet above ground at the Arizona State University Art Museums sculpture garden trellis after it is unveiled Friday at the museum . This experiment will be one Keats wont live to see, neither will his children, nor his childrens children, nor his childrens childrens child- okay, you get the point. But Keats told PetaPixel that he doesnt mind being not being able to attend the exposures unveiling in 3015. Ill be dead, Keats said. But I dont regret it at all. For me, its much more interesting to be here today, seeing the behavior of people who know theyre being watched by the unborn, and also to be watched myself, living vicariously as a future memory of the next millennium. Keats told Slate that the resulting photos wont be confusing, but will require a bit of interpretation to deconstruct what is recorded in the photo. Skyline: The camera will be pointed at the citys skyline photographed, capturing how civilization changes over the next 1,000 years . He told PetaPixel that the photograph will not only show Tempes skyline, but will illustrate how it develops over time. For instance, old houses torn down after a couple centuries will show up only faintly, as if they were ghosts haunting the skyscrapers that replace them, Keats said. Keats told Slate that he cant guarantee that the picture will be perfect or even perceptible. In fact, he said, it may take multiple attempts to get the exposure just right -- that could take thousands of years. But he said he does not see that as a fault. A total failure photographically could still be a success conceptually, he said. Keats said he chose Tempe because it is representative of urban expansion throughout the United States. He said he plans to install a second camera in Massachusetts. 