Public domain
Perennial Frost in a Crater on the Northern Plains
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Most surface ice on Mars is temporary. The polar layered deposits are thick stacks of permanent water ice at each pole, and the South Polar residual cap may be a permanent although dynamic layer of carbon dioxide ice as seen by NASA Mars Reconnaissanc
NASA Image and Video Library’s own descriptionCredit linePerennial Frost in a Crater on the Northern Plains. NASA/JPL, 2014-10-15. Public domain. ID: PIA18832.
