In 2012 a rover (Curiosity) has landed on Mars. It was driven by RTG batteries, which have a lifespan of several decades.
Few years earlier, in 2004 a little robot called Opportunity has landed on Mars. It was driven by solar panels and its mission was planned for about 3 months. Today is the 13th anniversary of this event and despite all predictions the rover is still functioning. On this occasion, in collaboration with a fellow journalist Jarek Chrostowski, I have created a mini comic reffering to these two robots: