ISS construction. US astronaut Sunita Williams' helmet visor, showing reflections of solar panels (upper frame) of the International Space Station (ISS). The camera used to take the picture is at lower centre. This picture was taken during a session of extravehicular activity (EVA) as part of building and maintenance work on the ISS. This was the second of three scheduled EVAs during Expedition 14. The work included reconfiguring cooling loops, securing the aft radiator of the P6 truss, and preparing for the removal of the EAS (Early Ammonia Service) unit. Photographed on 4 February 2007.