NASA astronaut Barry Wilmore operating outside the International Space Station (ISS) on the first of three spacewalks preparing the station for future arrivals by US commercial crew spacecraft - EPA
MIAMI: Two US astronauts on Sunday stepped out on the third spacewalk to prepare the International Space Station for the arrival of more commercial spacecraft in the coming years.
Space station commander Barry Wilmore and flight engineer Terry Virts began their six hour, 45 minute spacewalk just before 8pm (Malaysian time), Sunday.
