aug 022012
 
Water Once Flowed from the Southern Highlands of Mars

  ESA’s Mars Express has observed the southern part of a partially buried approximately 440-km wide crater, informally named Ladon basin. The images, near to where Ladon Valles enters this large impact region reveal a variety of features, most notably the double interconnected impact craters Sigli and Shambe, the basins of which are criss-crossed by extensive [continue reading]