Canadian Space Agency astronaut Bob Thirsk
![](/images/recherche//tiles/baea3455-1c12-4f3a-b804-90e8d9f8c846.jpg)
Canadian astronaut Bob Thirsk during an Expedition 20/21 preflight press conference at NASA's Johnson Space Center. (Credit: NASA)
File size: 0.91 MB
Image size: 2832 x 4256 pixels
Resolution: 300 dpi
Photo taken on March 4, 2009
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