We heard you like VIPER. 😉 In this image, the test version of our Volatiles Investigating Polar Exploration Rover (VIPER) kicks up high sinkage sand-like material. In November 2021, the latest test rover visited the NASAGlenn Simulated Lunar Operations Laboratory (SLOPE) to complete the next iteration of mobility testing, a critical step toward ensuring the rover is ready for its 2023 mission to the Moon’s South Pole. The latest prototype of the rover has the same wheel design and base size as the rover that will go to the Moon. The prototype also has the flight design motors, gearboxes and joints, as well as the newest version of the flight software. Later this spring, an even more flight-like rover will return to SLOPE for verification and validation testing. The testing is comparable to the final exam where the rover will need to prove it is capable of meeting design requirements with its hardware, software, and electronics. Image Credit: Jef Janis, NASA Glenn Research Center ...