NASA's hefty Martian rover will use an AI brain on a robot arm to map out signs of ancient life on Red Planet

The tiny X-ray bullets are only the size of a grain of sand. Pew! Pew! Pew!

Perseverance, NASA's latest Martian rover, will extend its two-metre robotic arm and use an AI-powered control system to carefully aim X-ray beams at ancient rock samples that might contain fossilised microbes....