By Olzhas Auyezov and Steve Gorman ALMATY (Reuters) -A U.S. astronaut and two Russian cosmonauts safely landed in Kazakhstan on Wednesday after leaving the International Space Station aboard the same capsule despite heightened antagonism between Moscow and Washington over the conflict in Ukraine. The flight — carrying NASA’s Mark Vande Hei and Russians Anton Shkaplerov and Pyotr Dubrov back to Earth — had been closely watched to determine whether escalating strife had spilled over into longtime cooperation in space between the two former Cold War adversaries. Russian space agency Roscosmos b…