This is a really cool time lapse video of the time Opportunity has spent on Mars so far, since it touched down in 2004:
I have always loved the idea of Mars rovers out there patrolling a distant planet and relaying information back to Earth intermittently. The work and programming that is put into these rovers is just staggering, amazing and slightly overwhelming!
It just makes me enjoy my tinkering with Sparki even more! 🙂