The Lockheed Martin U-2 is a high-altitude reconnaissance aircraft designed for intelligence gathering. First flown in 1955, it is known for its ability to operate at altitudes exceeding 70,000 feet, allowing it to capture detailed images and data over vast areas. The U-2 has been used extensively by the United States Air Force and other agencies for surveillance missions. The aircraft features a long wingspan and a sleek design, which contribute to its performance at high altitudes. Over the years, the U-2 has undergone several upgrades, enhancing its sensors and capabilities, making it a vital asset for national security and intelligence operations.