Sea ice fills the mouth of the St. Lawrence River in this image, captured by the MODIS on the Aqua satellite on January 17, 2010. The St. Lawrence River carries water from the Great Lakes out into the Gulf of St. Lawrence and then into the Atlantic Ocean.
NASA's MODIS or Moderate Resolution Imaging Spectroradiometer, a key instrument on the Terra satellite, took this spectacular image of west central Canada on September 13th.
The top quarter of the image shows the Northwest Territories and Great Slave Lake. Below the Northwest Territories from left to right are the provinces of British Columbia, Alberta, and Saskatchewan. On the border of Alberta and Saskatchewan is Lake Athabasca.
