12 Dec 2018, 14:00 UTC
NASA/JPL/University of Arizona
Holy barsoomian impact! What a beauty! For scale, the crater is about 3 kilometers wide.
As you can see, though, it’s wonky. The right (east) side looks fine and circular, but things go off the rails a bit as you circle around to the left (west). The northwest side is significantly flattened, and the inside of the crater wall has that wedge-shaped structure inside it all the way down to the crater floor. The floor itself looks flat, too (though that isn’t uncommon).