A SpaceX capsule sent to bring back two astronauts stranded on the International Space Station (ISS) has docked. The Dragon capsule, which has two empty seats for Butch Wilmore and Suni Williams, docked at 17:30 eastern time (22:30 BST).

SpaceX’s Falcon 9 rocket is grounded again after the vehicle’s second stage did not come down in the expected area of the ocean, following an otherwise successful mission that delivered a Dragon capsule and its crew to orbit. “We will resume launching once we better understand root cause,” the company said in a statement posted to X .

NASA engineers are running checks to solve the mystery of why the Falcon 9's engine failed to perform a routine maneuver to lower the rocket's altitude.