Launched on July 7, 2003, and landing in Meridiani Planum on January 25, 2004, NASA’s Opportunity rover was built to operate for just 90 sols (Martian days). Instead, it explored Mars for nearly 15 years, traveling 45.16 kilometers and returning over 217,000 images. Opportunity investigated rock and soil chemistry, discovered evidence of ancient water, and set the record for the longest distance driven by a vehicle on another world. The mission ended on February 13, 2019, after a planet-wide dust storm silenced the rover.