Its prime target is the 18, 000-foot (5, 500-meter) peak at the center of Gale Crater, Mount Sharp, where scientists hope to get a layer-by-layer look at the history of the planet.
Occupancy rates in senior housing nationally stood at 89.1% in the fourth quarter, above the 87% they fell to in 2010 but below the 91.7% peak in 2007, according to the National Investment Center for the Senior Housing and Care Industry.