This invention is a robotic vehicle designed to explore the surface of Mars. It is equipped with a variety of sensors and cameras to take pictures and collect data about the planet's terrain and atmosphere. The Mars Rover is capable of navigating autonomously over the planet's rugged terrain and can be remotely operated
From Wikipedia
Curiosity is a Mars rover that is exploring Gale crater and Mount Sharp on Mars as part of NASA's Mars Science Laboratory (MSL) mission. Launched in 2011 and landed the following year, the car-sized rover continues to operate more than a decade after its original two-year mission.