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A blue sign.
Date Taken:
December 3, 2019
Photograph By:
Brian Bezalel
License Type:
Creative Commons CC BY-NC-ND 4.0.

A sign welcomes participants to Phoenix Airfield, located on the Ross Ice Shelf near McMurdo Station.

The surface and foundation of the Phoenix runway is made of snow that’s been compacted by heavy rollers weighing up to 160,000 pounds. This crushes the snowflakes down into dense layers, nearly as hard as concrete. As new snow falls onto the field, it too will be crushed down to the hard landing surface. 

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This photo is in the public domain.

Photos whose copyright has expired or were taken by government employees as part of their job duties are considered to be in the public domain. Public domain works are not subject to copyright laws. Anyone may download these photos and use them freely, even for commercial purposes.

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This photo is covered by a Creative Commons license. Please see the Usage and Submissions page for more information. Use of this photo requires the following:

(1.) The user must give appropriate credit to the photographer and the National Science Foundation (NSF) and provide a link to the Creative Commons license. (2.) Use of the photo must be for non-commercial purposes only. (3.) No derivative works may be made with the original photo without the explicit permission of the photographer.