Astronauts (L-R) Steve MacLean, Mark Polansky, Julie Payette, Chris Cassidy, Thomas Marshburn and David Wolf react as they are acknowledged by the Speaker in the House of Commons on Parliament Hill in Ottawa November 4, 2009. Reuters Pictures 3 weeks ago

Astronauts (L-R) Steve MacLean, Mark Polansky, Julie Payette, Chris Cassidy, Thomas Marshburn and David Wolf react as they are acknowledged by the Speaker in the House of Commons on Parliament Hill in Ottawa November 4, 2009.