Mars Rover Finds plastic in Mars

As of my last knowledge update in September 2021, there was no confirmed discovery of plastic on Mars by any Mars rover. The primary focus of Mars rovers like Curiosity and Perseverance has been to study the planet's geology, climate, and potential signs of past or present microbial life. Discovering plastic on Mars would be a significant and unexpected finding.

However, space agencies and scientists are continually researching and exploring Mars, so it's possible that new discoveries have been made since then. I recommend checking the latest news from reputable sources or space agencies for any updates on this topic.