Wow. Who said there’s nothing big left to discover on Earth?: http://www.cnn.com/2013/08/29/world/europe/greenland-megacanyon/index.html?hpt=hp_t5
Fantastic. Not surprised a land mass that size would have a canyon like that but yes, amazing that we know the surface of the moon better that that of Earth’s largest island.
Cool. I flew over Greenland a few years ago and was in awe of all the stark features (glaciers, huge rivers of ice, rocky terrain with no vegetation, etc.)