While Perseverance completed a marathon on Mars within five years of its landing, NASA’s Curiosity rover had taken double the time — almost 11 years — to complete the same journey. New Delhi: The Perseverance rover just completed travelling 42.19 km on the surface of Mars, equivalent to a full-scale marathon, according to NASA. After five years and four months of consistently driving across the rocky, red planet, the rover was ... [3147 chars]