SpaceX crew launch marks 600 space travellers in 60 years

A SpaceX rocket has carried four astronauts into orbit, including the 600th person to reach space in 60 years. The repeatedly delayed flight occurred just two days after SpaceX brought four other astronauts home from the International Space Station. They should have been up there to welcome the newcomers, but Nasa and SpaceX decided to switch the order based on Monday’s ideal recovery weather in the Gulf of Mexico and pulled it off.