MOSCOW — Russia’s space chief has visited the United States to discuss plans for continued cooperation between Moscow and Washington on the International Space Station and lunar research with NASA’s acting chief, the first such face-to-face meeting in more than seven years. Dmitry Bakanov, the director of the state space corporation Roscosmos, met Thursday with NASA's new acting administrator, Transportation Secretary Sean Duffy, on a visit to attend the planned launch of a U.S.-Japanese-