Jeremy Hansen on a geological expedition on Victoria Island

2015-07-16 - The rocks that #Tunnunik crater hit were laid down in a sea over 400 million years ago - corals formed. - Gordon Oz Osinski, via Twitter, July 16, 2015.

From July 6 to 17, 2015, CSA astronaut Jeremy Hansen joins Dr. Gordon Osinski and his research team from Western University's Centre for Planetary Science and Exploration (CPSX) on Victoria Island, in the Arctic, for a geology field expedition to investigate the Tunnunik meteorite impact structure. (Credit: Canadian Space Agency)