Final Flight of Space Shuttle Endeavour: Canada's Contribution (Forwarded)

Canadian Space Agency
Longueuil, Quebec

April 20, 2011

Final Flight of the Space Shuttle Endeavour: Canada's Contribution

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 Canadarms 89th mission since it first flew on Shuttle
Columbia for STS-2 in 1981. You can find Canadarms 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 Payettes tribute to Endeavour can be viewed at:

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

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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For more information:

Canadian Space Agency
Media Relations Office
(450) 926-4370