The replacements for the astronauts involved in NASA's first medical evacuation are on their way to the International Space Station. SpaceX launched the fresh crew on Friday from Florida. The four astronauts are representing the U.S., France and Russia and should reach the orbiting lab Saturday. They'll fill the vacancies left by their evacuated colleagues. NASA had to put spacewalks on hold and defer other duties after an unidentified astronaut experienced a serious medical issue in January. The entire crew returned to Earth more than a month early, leaving three astronauts in orbit.

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Paul Espinosa of Belmont, a NASA senior project manager at Ames Research Center in Moffett Field, was recognized recently by NASA’s Space Flig…

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After 22-year wait, teacher Barbara Morgan ready to blast off to space station