Three more astronauts are heading to the International Space Station to restore its crew to six.
A Soyuz spacecraft launched from Kazakhstan on Sunday carrying representatives from Russia, Japan and the U.S. They're expected to dock at the space station Tuesday.
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The three new crew members will call the ISS home until April, giving them roughly four months to help conduct 250 scientific investigations.
NASA notes those investigations will span a number of fields, including "biology, Earth science, human research, physical sciences and technology development."
