UPDATED: Motley Crue has responded to Mick Mars’ lawsuit alleging that the band is trying to force him out after 41 years, with the group’s attorneys contending that Mars already is out ...

Landing on Mars' Gale Crater in 2012, the rover has traversed 21 miles (34 kilometers) of the 96-mile-wide (154 km) meteor impact crater, dutifully investigating the geology within.