Canadarm, the zero-gravity grappler (pictures)
Now a permanent display in the Canada Aviation and Space Museum, the Canadarm played a key role in space shuttle missions, from servicing instruments to checking shuttle integrity.
Launching Hubble
In April 1990, the Canadarm helped launch the Hubble Space Telescope from the cargo bay of Space Shuttle Discovery. The observatory would require corrective optics and several servicing missions to help produce its astounding collection of astronomy images.
Old and new
Distant light
Under glass
During shuttle mission STS-74 in 1995, Hadfield became the first Canadian Space Agency astronaut to operate the Canadarm.
End effector
Sky high
Quick fix
Spacewalking
Hubble on the horizon
Dangling
In this 2007 photo, astronaut Scott Parazynski (right) dangles from the OBSS while Space Shuttle Discovery was docked with the International Space Station. Parazynski made repairs to the station's P6 solar array.
Canadarm's successor
Apart from helping build the station, Canadarm2 grabs resupply craft, unloads cargo, and serves as a work platform for astronauts such as Stephen Robinson, seen here during the STS-114 mission of the Space Shuttle Discovery to the ISS in 2005.