Replacement astronauts arrive at International Space Station

The four newcomers will spend the next few days learning the station’s ins and outs from Butch Wilmore and Suni Williams

The astronauts hugged the new arrivals. Picture: Nasa/AP

A SpaceX crew capsule has arrived at the International Space Station, delivering the replacements for Nasa’s two stuck astronauts.

The four newcomers – from the US, Japan and Russia – will spend the next few days learning the station’s ins and outs from Butch Wilmore and Suni Williams, who will then strap into their own SpaceX capsule later this week to end an unexpected extended mission that began last June.