Space station leak concerns will delay visit by astronauts from India, Poland and Hungary

A chartered spaceflight for India, Poland and Hungary’s first astronauts in decades has been delayed indefinitely because of leak concerns at the International Space Station. NASA said Thursday that it wants to monitor the cabin pressure on the Russian side of the orbiting lab before accepting visitors. Officials stressed that the seven astronauts currently at the space station are safe and that other operations up there aren't affected.