The X-37B, USAF’s first unmanned re-entry space vehicle, returns to Earth, following its maiden voyage of 220 days, during which time it conducted risk reductions and reusable space vehicle technology concept development experiments.
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.
