18. Goat Paddock, Australia
This image, taken by the shuttle Large Format Camera, shows the Goat Paddock Crater, which is located within the semi-arid plains south of the Kimberley Plateau of northwestern Australia. The crater is expressed as a nearly circular depression open to the north. Its name is derived from its natural use as a paddock (a fenced pasture) for livestock. Goat Paddock's diameter is very close to the transition diameter from simple bowl-shaped craters to more complex forms with central structures, flat floors, and slumped rim zones. Unfortunately, very little is currently known about this potentially insightful feature.
Space shuttle image STS17-4107-1228.