Beagle Crater and 360° Panorama from Sol 901 through 904 (3)

Caption NASA originale:"Because impact craters have well-understood shapes when they form, the altered appearance of eroded craters gives scientists clues to the processes that modified them. By observing how filled an impact crater has become and how worn its edges are, scientists can estimate how long its surface has been exposed to erosion. The many-sided outline of a crater such as Beagle and the blocky appearance of its ejecta may also tell scientists about the strength of the underlying bedrock. Based on observations such as these, scientists know that Beagle Crater is fresher than Eagle and Fram craters near Opportunity's Landing Site and more similar in form to Viking and Voyager craters in the plains to the North of Beagle".