NASA’s Armstrong Flight Research Center in California has added two retired U.S. Air Force F‑15 aircraft to its flight research fleet, enhancing its ability to support advanced aeronautics projects. Previously operated by the Oregon Air National Guard, these legacy jets arrived at Edwards Air Force Base in December 2025 and will bolster NASA’s supersonic flight research efforts, including work connected to the X‑59 quiet supersonic aircraft under the Low Boom Flight Demonstrator initiative. One

NASA and Lockheed Martin Skunk Works recently unveiled the X-59 experimental aircraft. With X-59, which is designed and built to reduce a loud sonic boom, NASA aims to gather data that could revolutionize air travel. | The Times of India