NASA’s Perseverance Rover Goes Through Trials by Fire, Ice, Light and Sound (NASA Science, 5/18/20)
While auto manufacturers built over 92 million motor vehicles for this world in 2019, NASA built just one for Mars. The Perseverance Mars rover is one of a kind, and the testing required to get it ready to roll on the mean (and unpaved) streets of the Red Planet is one of a kind as well.
Because hardware cannot be repaired once the rover is on Mars, the team has to build a vehicle that can survive for years on a planet with punishing temperature shifts, constant radiation and ever-present dust. To ensure readiness, they put Perseverance through a test program tougher than the trip to Mars and the environment it will encounter once there.