Job done! - NASA astronaut Rex Walheim steps out into space for the third time
Job done! - NASA astronaut Rex Walheim steps out into space for the third time
NASA astronaut Rex Walheim took part in all three extra-vehicular activities of the Columbus mission. The tasks he performed included installing the European space laboratory and a nitrogen tank for the cooling system on the ISS, and attaching the measuring instruments for several experiments to the outside of the ISS.
