Russia grounds Proton-M rocket for 3 1/2 months

MOSCOW (AP) — Russia’s workhorse Proton-M rockets will be out of service for three and a half months because of engine problems, Deputy Prime Minister Dmitry Rogozin said Saturday during a visit to the factory in the city of Voronezh where the engines are manufactured. Rogozin said some employees at the factory had been involved […]