Figure 1. (a) The InSight lander (red box) in the 27 m-diameter Homestead hollow degraded impact crater (red dashed circle) in western Elysium Planitia, Mars (4.502°N, 135.623°E). The lander is 6 m measured across the solar panels, is in the northwestern quadrant of the hollow, and the lander workspace is to the south. Yellow box shows location of (b). Subframe of HiRISE color ESP_036761_1845 (0.25 m/pixel). (b) Color view of InSight lander inHomestead hollow (red dashed circle) and other hollows (white dotted circles) in the immediate vicinity. Red line cutting across the hollow is the boundary between occurrence of relatively few rocks to the east versus ~3X more rocks in the region to the west dubbed “Rocky Field ” (see Figure 2). Landing rockets removed dust from the immediate surface and caused the bright zone and surrounding dark halo around the lander (Williams et al., 2020). Subframe of HiRISE color image ESP_061684_1845 (0.25 m/pixel). Modified from Fig. 1 in Grant et al. (2020).