Steven Glenwood MacLean FRCGS (born December 14, 1954) is a Canadian astronaut. MacLean served as a Mission Specialist on STS-115, which launched on September 9, 2006, and returned on September 21, 2006. He became the first Canadian to operate the robotic arm Canadarm2. On September 13, he performed his first spacewalk, a 7-hour EVA to activate the solar panels on the P3/4 truss – the second Canadian to do so, after Chris Hadfield.
STS-115 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Atlantis. It was the first assembly mission to the ISS after the Columbia disaster, following the two successful Return to Flight missions, STS-114 and STS-121. STS-115 launched from Pad 39-B at the Kennedy Space Center on 9 September 2006 at 11:14:55 EDT (15:14:55 UTC). The mission is also referred to as ISS-12A by the ISS program. The mission delivered the second port-side truss segment (ITS P3/P4), a pair of solar arrays (2A and 4A), and batteries. A total of three spacewalks were performed, during which the crew connected the systems on the installed trusses, prepared them for deployment, and did other maintenance work on the station.Low Earth Orbit
The Canadian Space Agency was established by the Canadian Space Agency Act which received Royal Assent on May 10, 1990. The Canadian space program is administered by the Canadian Space Agency. Canada has contributed technology, expertise and personnel to the world space effort, especially in collaboration with ESA and NASA. In addition to its astronauts and satellites, some of the most notable Canadian technological contributions to space exploration include the Canadarm on the Space Shuttle and Canadarm2 on the International Space Station.