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| Version 1 | Version 2 |
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| US astronauts make key spacewalk | US astronauts make key spacewalk |
| (10 minutes later) | |
| Two US astronauts have carried out a key spacewalk on the International Space Station (ISS). | |
| Scott Parazynski and Douglas Wheelock helped fit a massive girder that holds giant solar wings to the orbiting space platform. | Scott Parazynski and Douglas Wheelock helped fit a massive girder that holds giant solar wings to the orbiting space platform. |
| A problem with the station's existing solar panels means the new solar arrays must work perfectly. | A problem with the station's existing solar panels means the new solar arrays must work perfectly. |
| Any problems with the equipment could delay the planned December launch of the European science lab, Columbus. | Any problems with the equipment could delay the planned December launch of the European science lab, Columbus. |
| "Another great day at the office," spacewalk veteran Scott Parazynski told Douglas Wheelock as they floated out of the airlock. | "Another great day at the office," spacewalk veteran Scott Parazynski told Douglas Wheelock as they floated out of the airlock. |
| The pair's main task was to finish moving a 17.5-tonne girder, or truss, to its new home at one end of the ISS. | The pair's main task was to finish moving a 17.5-tonne girder, or truss, to its new home at one end of the ISS. |
| Astronauts inside the ISS used a robotic arm to hook up the beam to the station's backbone, helped by their spacewalking colleagues. | Astronauts inside the ISS used a robotic arm to hook up the beam to the station's backbone, helped by their spacewalking colleagues. |
| Parazynski also made a brief inspection of some malfunctioning equipment during the seven-hour spacewalk. | Parazynski also made a brief inspection of some malfunctioning equipment during the seven-hour spacewalk. |
| In graphics: Space Station On Sunday, a spacewalking astronaut found metal shavings inside a motorised rotary joint that keeps the existing solar panels in the correct orientation to the Sun. | In graphics: Space Station On Sunday, a spacewalking astronaut found metal shavings inside a motorised rotary joint that keeps the existing solar panels in the correct orientation to the Sun. |
| Nasa said Parazynski found no evidence of any damage, saying it was "nice and clean". | Nasa said Parazynski found no evidence of any damage, saying it was "nice and clean". |
| The crew of space shuttle Discovery has already installed the new Harmony module in a temporary position on the ISS. | The crew of space shuttle Discovery has already installed the new Harmony module in a temporary position on the ISS. |
| Harmony gives ISS crews 18% more room and is the first expansion of living and working space since 2001. | Harmony gives ISS crews 18% more room and is the first expansion of living and working space since 2001. |
| It will provide a passageway between three science laboratories: the existing US Destiny lab; the European Space Agency's Columbus module; and the Japanese Kibo experimental units. | It will provide a passageway between three science laboratories: the existing US Destiny lab; the European Space Agency's Columbus module; and the Japanese Kibo experimental units. |
| Built in Italy by the company Thales Alenia Space, Harmony weighs some 14 tonnes. It is 7m by 4.6m (23ft by 15ft). | Built in Italy by the company Thales Alenia Space, Harmony weighs some 14 tonnes. It is 7m by 4.6m (23ft by 15ft). |
| The installation has been led by Italian astronaut and mission specialist Paolo Nespoli. | The installation has been led by Italian astronaut and mission specialist Paolo Nespoli. |