Robotic Space Rovers Keep Getting Stuck. Engineers Have Figured Out Why

Robotic space rovers keep getting stuck. Engineers have figured out why

When a multimillion-dollar extraterrestrial vehicle gets stuck in soft sand or gravel—as did the Mars rover Spirit in 2009—Earth-based engineers take over like a virtual tow truck, issuing a series of commands that move its wheels or reverse its course in a delicate, time-consuming effort to free it and continue its exploratory mission.

Robotic Space Rovers Keep Getting Stuck. UW Engineers Have Figured Out Why

Using computer simulations, University of Wisconsin-Madison mechanical engineers have uncovered a flaw in how rovers are tested on Earth. That error leads to overly optimistic conclusions about how rovers will behave once they're deployed on extraterrestrial missions.