ESA’s Mars Express has observed the southern part of a 440-km wide crater, informally named Ladon basin. The image shows the interconnected craters Sigli and Shambe, believed to have formed when a large meteorite fragmented in to two pieces just before impact. Extensive fracturing can be seen within the craters. Above the craters, west, creek-like flow channels can be seen leading in to the wider impact basin region to the right, north (ESA / DLR...
