THEMIS Image of the Day, June 19, 2019. Today’s VIS image shows two craters located on the margin of Syrtis Major Planum.
The two large craters are not circular. The flatter sides are caused by the pressure wave generated by the impact being deflected along tectonic fractures in the surface rocks.
On Earth, Meteor Crater (Arizona) also has “corners” due to subsurface faults.