NASA keeps its PROMISE to raid Mars testbeds for parts

NASA is moving ahead with its plan to repurpose a Mars rover engineering model as a lunar trundlebot for less than $400 million.The robot, dubbed PROMISE (Polar Rover for Observation, Mapping, and In-Situ Exploration), is a cut-and-shut of engineering test articles used for the Perseverance and Curiosity rovers, currently rolling around the Red Planet.During a weekend briefing, NASA outlined the plan for PROMISE: to land the robot on the lunar surface by late 2028 for an 18-month mission. PROMISE will be preceded by NASA's VIPER trundlebot, which is expected to survive only 100 days on the Moon's surface. PROMISE will carry copies of VIPER's science instruments, including a drill capable of boring 1 meter into the lunar regolith.Power will...

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