Opportunity field report, September 22, 2017

Sol 4857, September 22, 2017: Rover Field Report by Larry Crumpler, MER Science Team & New Mexico Museum of Natural History & Science: Opportunity is continuing its drive down Persevereance Valley, a channel that was cut in the inner wall of the 22 km-diameter Endeavour impact crater in ancient Mars (Noachian) time. This is the second stop of a series of stops as Opportunity drives down the valley. The goal is to collect field data that will help assess the origin of the valley. While the valley looks like a water-cut valley, we cannot be sure whether other processes like wind or drive flow have cut the valley. But that is why we are taking our time and collecting data as we drive. [More at link]