NASA's New Reduced-Gravity 737: From Secret Air Force Testbed to Artemis Workhorse

NASA unveiled its newest reduced-gravity research aircraft, a Boeing 737-700 formerly a secret U.S. Air Force flying testbed (N712JM) and now registered N837NA, which will support Artemis lunar-suit validation and crew-system testing through parabolic flights that produce about 20 seconds of near-weightlessness per parabola; the program will also pursue systems-integration research for autonomy and digital sensors, with the Air Force history remaining classified.