NASA has released recent photographs taken by the Mars Rover Spirit, after it had climbed out of the crater in which it had landed and took panoramic pictures from the crater’s top. The photographs captured, according to JPL/NASA, a “dust devil” in the distance (about 2 miles away).
But as one looks closely at the photographs – there are many of them – one notices incredible features: What looks like a long sand covered wall, a black stone ring, a sand blown conical structure & rectangular areas marked off by stone boundaries…