Footprints at the South Pole
After a storm, the loose snow surrounding the compacted snow under a footprint is scoured away, leaving an elevated, mushroom-looking footprint. This photo was taken during the winter when there is 24-hours of darkness at the South Pole.
The National Science Foundation runs the U.S. Antarctic Program (USAP). In addition to maintaining three U.S. research stations on the continent, USAP supports research projects in an array of scientific disciplines including, for example, aeronomy and astrophysics, biology and medicine, geology and geophysics, glaciology, and ocean and climate systems. Outreach such as the Antarctic Artists and Writers program and education programs are also supported. For more information about USAP, visit the program's website Here. [Note: Please see special restrictions regarding use of this image, below.] (Date of image: May 31, 2010)
Credit: Daniel Luong-Van
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