Los Angeles: After insisting that space relations wouldn't be altered by earthly politics, Nasa on Wednesday said it was severing ties with Russia except for the International Space Station.Nasa employees can't travel to Russia or host visitors until further notice. They're also barred from emailing or holding teleconferences with their Russian counterparts because of Russia's actions in Ukraine, according to a memo sent to workers.Activities related to the space station are exempt. Nasa and Russia's space agency will "continue to work together to maintain safe and continuous operation&qu...
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