In total secrecy, Lockheed Martin pilot Hal Farley flies the F-117A Nighthawk stealth fighter for the first time at Tonopah Test Range, Nevada. The aircraft’s existence was not publicly revealed until 1988.
Small satellites meant to improve the way the U.S. measures Earth’s magnetic field—an option to expand the military’s position, navigation, and timing enterprise—launched March 30 from Vandenberg Space Force Base, Calif.
