New Rover Debate - Mars 2020
In three years, a new explorer will touch down on the Red Planet. Wheels churning, machinery whirring, the rover will amble across the rusty terrain, looking for rocks to send back to Earth — rocks that could prove there once was life on Mars.
This artist’s rendering depicts NASA's Mars 2020 rover, with its robotic arm extended. (NASA/JPL‑Caltech)