Four new astronauts arrive at ISS to replace Nasa's evacuated crew

The International Space Station returned to full strength with the arrival of four new astronauts to replace colleagues who bailed early because of health concerns.

SpaceX delivered the US, French and Russian astronauts on Saturday, a day after launching them from Cape Canaveral.

Last month's medical evacuation was NASA's first in 65 years of human spaceflight. One of four astronauts launched by SpaceX last summer suffered what officials described as a serious health issue, prompting their hasty return. That left only three crew members to keep the place running - one American and two Russians - prompting NASA to pause spacewalks and trim research.

Moving in for eight to nine months are NASA's Jessica Meir and Jack Hathaway, France's Sophie Adenot and Russia's Andrei Fedyaev. Meir, a marine biologist, and Fedyaev, a former military pilot, have lived up there before. During her first station visit in 2019, Meir took part in the first all-female spacewalk.

Adenot, a military helicopt