David Saint-Jacques on a Glaciology expedition in the Kaskawulsh Glacier, Yukon

2015-07-30 - David Saint-Jacques and a colleague stand over a crevasse.

From July 25 to August 2, 2015, Canadian Space Agency (CSA) astronaut David Saint-Jacques took part in a training expedition in the Kaskawulsh Glacier in Yukon to learn methods and techniques for conducting geological fieldwork that could be applied to future missions to Mars or other planets. (Credit: Canadian Space Agency)