Fig. 8From: The MMX rover: performing in situ surface investigations on PhobosExample of a SSDEM simulation of a simplified MMX rover wheel traversing a bed of 180,000 cohesionless spherical grains. The wheel is 214 mm in diameter and the grains are 6 ± 0.5 mm in diameter. The simulation was conducted under Earth-gravity using Chrono (Sunday et al. 2020). The grains are coloured by velocity magnitudeBack to article page