Disclaimer: This material is being kept online for historical purposes. Though accurate at the time of publication, it is no longer being updated. The page may contain broken links or outdated information, and parts may not function in current web browsers. Visit https://espo.nasa.gov for information about our current projects.


A wide lead, running roughly parallel to the Antarctic coastline, which separated shore-fast sea ice at right from the mobile ice pack at left

John Sonntag / NASA