For decades, U.S. astronauts and Russian cosmonauts have lived side-by-side aboard the International Space Station. Host Aaron Scott talks with Science Correspondent Geoff Brumfiel about how a war on planet Earth is changing life in space and what those changes say about the limits of science as a tool for diplomacy. For more of Geoff's reporting, check out "Russia's war in Ukraine is threatening an outpost of cooperation in space."You can follow Aaron on Twitter @AaronScottNPR and Geoff @GBrumfiel. Email Short Wave at ShortWave@NPR.org.