Http://www.cosmicdiary.org www.cosmicdiary.org2016-01-10⚑r&d http://www.cosmicdiary.org yardangs . Given enough time, the wind will scrape at the surface until both the yardangs and the river channels are gone, but for now there 8217;s a beautiful landscape. HiRISE PSP 002424 1765 NASA JPL Univ. of Arizona aeolian. erosion. yardangs December 22, 2015 by jhkpci Observing planet formation at close range Gemini Planet Imager 8217;s view of the TW Hya disk Investigations of star and planet formation have long focused on