The International Space Station returned to full strength with Saturday’s arrival of four new astronauts to replace colleagues who bailed early because of health concerns.
SpaceX delivered the US, French and Russian astronauts a day after launching them from Cape Canaveral.
Last month’s medical evacuation was Nasa’s first in 65 years of human space flight.
One of four astronauts launched by SpaceX last summer suffered what officials described as a serious health issue, prompting their hasty…



