Public domain
HiRISE Spots CO2 Ice Sublimating
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This series of images shows carbon dioxide ice sublimating (going directly from a solid to a gas) inside a pit at Mars' south pole. As ice is lost from the steep walls of pits like this, it reforms on nearby flat surfaces. Each frame of the animation was taken by the High Resolution Imaging Science Experiment camera (HiRISE) on NASA's Mars Reconnaissance Orbiter. The images used in this animation were taken between 2007 and 2013. The walls of the pit are about 656 feet (200 meters) across.
NASA Image and Video Library’s own descriptionCredit lineHiRISE Spots CO2 Ice Sublimating. NASA/JPL, 2019-05-15. Public domain. ID: PIA23238.
