Curiosity Rover (2012)

NASA's Curiosity rover landed in Gale Crater on Mars on 6 August 2012 using a never-before-used "sky crane" descent system and has been operating for over 12 years, travelling more than 35 km across the Martian surface. Curiosity confirmed that Mars once had the chemistry necessary to support microbial life, discovering ancient stream beds and organic molecules. Its nuclear power source (an RTG producing 110 watts) means it operates independently of solar panels.