Part of <a href="https://en.wikipedia.org/wiki/Elysium_Planitia" class="extiw" title="en:Elysium Planitia">Elysium Planitia</a> on Mars. Centered at 5.9°N, 150.7°E. Size of the image is 24×31 km, north is up. Photo by <a href="https://en.wikipedia.org/wiki/Mars_Reconnaissance_Orbiter" class="extiw" title="en:Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a>'s Context Camera (CTX), contrast is increased. Sun elevation is 36.6°; spacecraft altitude is 270.99 km.
Plate-like terrain, interpreted as ice which moved on a sea of water (<a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2005Natur.434..352M">Murray et al., 2005</a>) or pieces of crust on cooling lava sea (<a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2012Sci...336..449R">Ryan, Christensen, 2012</a>). The plates moved to the left, and obstacles (crater rims) turned them into piles of pieces (<a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2005Natur.434..352M">Murray et al., 2005</a>).
NASA
Part of <a href="https://en.wikipedia.org/wiki/Mars_Reconnaissance_Orbiter" class="extiw" title="en:Mars Reconnaissance Orbiter">Mars Reconnaissance Orbiter</a>'s Context Camera image <a rel="nofollow" class="external text" href="http://viewer.mars.asu.edu/planetview/inst/ctx/P02_001791_1852_XN_05N209W#P=P02_001791_1852_XN_05N209W&amp;T=2">P02_001791_1852_XN_05N209W</a> with increased contrast