The Curiosity rover that is the main part of the Mars Science Laboratory mission is very different from its predecessors Sojourner and the twin rovers Spirit & Opportunity. L-R: Spirit/Opportunity, Sojourner and Curiosity. L-R: The wheels of Sojourner, Spirit/Opportunity and Curiosity. Curiosity is nearly twice as long as Spirit/Opportunity and has more than five times … Continue reading Curiosity’s nuclear battery