HiRISE: High Resolution Imaging Science Experiment http://uahirise.org Image updates from the HiRISE Camera onboard the Mars Reconnaissance Orbiter en-us editor@uahirise.org (Ari) Wed, 13 Nov 2014 11:00:00 MST Spring in Inca City Ihttp://uahirise.org/ESP_037626_0985Every winter a layer of carbon dioxide ice condenses in the Southern polar region, forming a seasonal polar cap.Spring in Inca City IIhttp://uahirise.org/ESP_037811_0985Dark spots on the ridge show places where the seasonal polar ice cap has ruptured, releasing gas and fine material.Spring in Inca City IIIhttp://uahirise.org/ESP_037877_0985We see how the number of fans and blotches depends on the thickness of the ice layer and how high the sun is in the sky.Spring in Inca City IVhttp://uahirise.org/ESP_038022_0985At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens.Spring in Inca City Vhttp://uahirise.org/ESP_038299_0985The layer of seasonal ice has started to develop long cracks, and fans of dust are emerging from them. The 4 Q&A: Michael Berube http://www.uahirise.org/epo/4qa/berube This week's 4 Q&A features University of Arizona undergraduate (College of Engineering) and digital terrain model production specialist, Michael Berube. HiRISE on iTunes https://itunes.apple.com/us/podcast/hirise-beautifulmars-podcast/id928543600?mt=2 Get your Mars fix with our video and audio podcasts.