Canadian Space Agency

Canadian Space Agency

April 20, 2011 13:12 ET

Note to Editors/Final Flight of the Space Shuttle Endeavour: Canada's Contribution

LONGUEUIL, QUEBEC--(Marketwire - April 20, 2011) - The final flight of the Space Shuttle Endeavour is scheduled for April 29, 2011, at 3:47 p.m. EDT. This is the second-to-last mission before the Space Shuttle program retires later this year.

This flight will mark Canadarm's 89th mission since it first flew on Shuttle Columbia for STS-2 in 1981. You can find Canadarm's complete flight history on our website at:

Canadian astronauts have flown 14 times on the Space Shuttle and once on the Soyuz. Marc Garneau, Chris Hadfield, Dave Williams and Julie Payette are the only Canadians to have flown aboard the Space Shuttle Endeavour.

Julie Payette's tribute to Endeavour can be viewed at:

You will find a tribute from former CSA Astronaut Dave Williams on the Space Shuttle: .

Canadian content aboard Endeavour:

Dexter's spare arm and computer

The Express Logistics Carrier 3 will carry several spare parts for Canadian robots to sustain operations once the Shuttle is retired from service, including: a spare arm for Dextre, remote power controller modules (large circuit breaker boxes), and an arm computer unit (the heart of Canadarm2's computer subsystem).

Other spare parts for Canadian robotics include an additional grapple fixture, or anchor point, for Canadarm2.



The last Canadian science experiment for the Space Shuttle, Hypersole will determine changes in skin sensitivity before and after spaceflight, and whether these changes are related to balance control. Changes in sensitivity will be measured on the foot sole, where skin receptors related to balance and maintaining balance while moving are located. The Principal Investigator for Hypersole is Dr Leah R. Bent of the University of Guelph. Hypersole was first conducted on STS-132 in May 2010.

Data from Hypersole are expected to make a significant contribution to existing studies of the aging process and reductions in information relayed by skin sensors that lead to a loss of balance control and, among the elderly especially, a greater incidence of falls. The data will also provide knowledge that benefits astronauts as they perform their flight and post-flight duties.

A backgrounder is available at:


Blood samples collected as part of the VASCULAR experiment will be returned to Earth aboard STS-134 for analysis. Health Consequences of Long-Duration Flight (VASCULAR) will conduct an integrated investigation of mechanisms responsible for changes in blood vessel structure with long-duration space flight and will link this with functional and health consequences that parallel changes with the aging process. Dr. Richard Hughson of the University of Waterloo leads the VASCULAR science team, which is funded by the Canadian Space Agency and supported by NASA.

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