I think that GRIT should be the name of the new MARS Rover. One definition of grit is small loose particles of stone and sand. The rover is trying to pick up grit on the surface of the planet Mars. Another definition of grit is courage and strength of mind. Astronauts need to have grit because they are so brave. I hope the people who build the Mars Rover have grit too because I think it takes a long time to build a rover that goes into space. That is why I think that GRIT should be the name of the new Mars Rover!