A B-52 and B-1B bombers, accompanied by a KC-10 tanker, land at Poltava Air Base, Ukraine, marking the first time since World War II that US bombers have landed in that country. B-17 bombers had flown there 50 years earlier on shuttle bombing missions against Nazi targets in eastern Europe.
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.
